Home / 74,077.17-102,225.71-40,084.91

Finding the Fourth Proportional to 74,077.17, 102,225.71 and 40,084.91

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Solution

The fourth proportional to 74,077.17, 102,225.71 and 40,084.91 is: 55,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,077.17 : 102,225.71 = 40,084.91 : x
  2. Step 2: Convert to fraction form
    74,077.17/102,225.71 = 40,084.91/x
  3. Step 3: Cross multiply
    74,077.17x = 102,225.71 × 40,084.91
  4. Step 4: Simplify right side
    74,077.17x = 4,097,708,385.04
  5. Step 5: Solve for x
    x = 4,097,708,385.04/74,077.17
  6. Step 6: Final answer
    x = 55,316.75

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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.