Home / 66,915.68-92,335.13-38,237.20

Finding the Fourth Proportional to 66,915.68, 92,335.13 and 38,237.20

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Solution

The fourth proportional to 66,915.68, 92,335.13 and 38,237.20 is: 52,762.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.68 : 92,335.13 = 38,237.20 : x
  2. Step 2: Convert to fraction form
    66,915.68/92,335.13 = 38,237.20/x
  3. Step 3: Cross multiply
    66,915.68x = 92,335.13 × 38,237.20
  4. Step 4: Simplify right side
    66,915.68x = 3,530,636,832.84
  5. Step 5: Solve for x
    x = 3,530,636,832.84/66,915.68
  6. Step 6: Final answer
    x = 52,762.47

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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.