Home / 66,915.02-92,342.61-38,620.68

Finding the Fourth Proportional to 66,915.02, 92,342.61 and 38,620.68

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Solution

The fourth proportional to 66,915.02, 92,342.61 and 38,620.68 is: 53,296.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.02 : 92,342.61 = 38,620.68 : x
  2. Step 2: Convert to fraction form
    66,915.02/92,342.61 = 38,620.68/x
  3. Step 3: Cross multiply
    66,915.02x = 92,342.61 × 38,620.68
  4. Step 4: Simplify right side
    66,915.02x = 3,566,334,391.17
  5. Step 5: Solve for x
    x = 3,566,334,391.17/66,915.02
  6. Step 6: Final answer
    x = 53,296.47

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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.