Home / 52,430.60-78,473.10-40,680.20

Finding the Fourth Proportional to 52,430.60, 78,473.10 and 40,680.20

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Solution

The fourth proportional to 52,430.60, 78,473.10 and 40,680.20 is: 60,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,430.60 : 78,473.10 = 40,680.20 : x
  2. Step 2: Convert to fraction form
    52,430.60/78,473.10 = 40,680.20/x
  3. Step 3: Cross multiply
    52,430.60x = 78,473.10 × 40,680.20
  4. Step 4: Simplify right side
    52,430.60x = 3,192,301,402.62
  5. Step 5: Solve for x
    x = 3,192,301,402.62/52,430.60
  6. Step 6: Final answer
    x = 60,886.23

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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.