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Finding the Fourth Proportional to 75,326.76, 112,811.94 and 65,412.18

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Solution

The fourth proportional to 75,326.76, 112,811.94 and 65,412.18 is: 97,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,326.76 : 112,811.94 = 65,412.18 : x
  2. Step 2: Convert to fraction form
    75,326.76/112,811.94 = 65,412.18/x
  3. Step 3: Cross multiply
    75,326.76x = 112,811.94 × 65,412.18
  4. Step 4: Simplify right side
    75,326.76x = 7,379,274,925.43
  5. Step 5: Solve for x
    x = 7,379,274,925.43/75,326.76
  6. Step 6: Final answer
    x = 97,963.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.