Home / 66,688.16-92,026.68-38,387.84

Finding the Fourth Proportional to 66,688.16, 92,026.68 and 38,387.84

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Solution

The fourth proportional to 66,688.16, 92,026.68 and 38,387.84 is: 52,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,688.16 : 92,026.68 = 38,387.84 : x
  2. Step 2: Convert to fraction form
    66,688.16/92,026.68 = 38,387.84/x
  3. Step 3: Cross multiply
    66,688.16x = 92,026.68 × 38,387.84
  4. Step 4: Simplify right side
    66,688.16x = 3,532,705,467.57
  5. Step 5: Solve for x
    x = 3,532,705,467.57/66,688.16
  6. Step 6: Final answer
    x = 52,973.50

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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.