Home / 79,531.40-109,756.26-45,545.16

Finding the Fourth Proportional to 79,531.40, 109,756.26 and 45,545.16

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Solution

The fourth proportional to 79,531.40, 109,756.26 and 45,545.16 is: 62,854.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,531.40 : 109,756.26 = 45,545.16 : x
  2. Step 2: Convert to fraction form
    79,531.40/109,756.26 = 45,545.16/x
  3. Step 3: Cross multiply
    79,531.40x = 109,756.26 × 45,545.16
  4. Step 4: Simplify right side
    79,531.40x = 4,998,866,422.70
  5. Step 5: Solve for x
    x = 4,998,866,422.70/79,531.40
  6. Step 6: Final answer
    x = 62,854.00

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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.