Home / 78,414.02-117,506.20-38,892.22

Finding the Fourth Proportional to 78,414.02, 117,506.20 and 38,892.22

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Solution

The fourth proportional to 78,414.02, 117,506.20 and 38,892.22 is: 58,281.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414.02 : 117,506.20 = 38,892.22 : x
  2. Step 2: Convert to fraction form
    78,414.02/117,506.20 = 38,892.22/x
  3. Step 3: Cross multiply
    78,414.02x = 117,506.20 × 38,892.22
  4. Step 4: Simplify right side
    78,414.02x = 4,570,076,981.76
  5. Step 5: Solve for x
    x = 4,570,076,981.76/78,414.02
  6. Step 6: Final answer
    x = 58,281.38

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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.