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Finding the Fourth Proportional to 67,782.71, 93,538.23 and 40,915.41

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Solution

The fourth proportional to 67,782.71, 93,538.23 and 40,915.41 is: 56,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,782.71 : 93,538.23 = 40,915.41 : x
  2. Step 2: Convert to fraction form
    67,782.71/93,538.23 = 40,915.41/x
  3. Step 3: Cross multiply
    67,782.71x = 93,538.23 × 40,915.41
  4. Step 4: Simplify right side
    67,782.71x = 3,827,155,031.12
  5. Step 5: Solve for x
    x = 3,827,155,031.12/67,782.71
  6. Step 6: Final answer
    x = 56,462.12

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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.