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Finding the Fourth Proportional to 66,298.76, 91,492.30 and 36,490.76

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Solution

The fourth proportional to 66,298.76, 91,492.30 and 36,490.76 is: 50,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.76 : 91,492.30 = 36,490.76 : x
  2. Step 2: Convert to fraction form
    66,298.76/91,492.30 = 36,490.76/x
  3. Step 3: Cross multiply
    66,298.76x = 91,492.30 × 36,490.76
  4. Step 4: Simplify right side
    66,298.76x = 3,338,623,561.15
  5. Step 5: Solve for x
    x = 3,338,623,561.15/66,298.76
  6. Step 6: Final answer
    x = 50,357.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.