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Finding the Fourth Proportional to 40,279.70, 60,419.55 and 10,702.10

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Solution

The fourth proportional to 40,279.70, 60,419.55 and 10,702.10 is: 16,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,279.70 : 60,419.55 = 10,702.10 : x
  2. Step 2: Convert to fraction form
    40,279.70/60,419.55 = 10,702.10/x
  3. Step 3: Cross multiply
    40,279.70x = 60,419.55 × 10,702.10
  4. Step 4: Simplify right side
    40,279.70x = 646,616,066.06
  5. Step 5: Solve for x
    x = 646,616,066.06/40,279.70
  6. Step 6: Final answer
    x = 16,053.15

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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.