Home / 99,344.60-137,085.18-56,904.92

Finding the Fourth Proportional to 99,344.60, 137,085.18 and 56,904.92

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Solution

The fourth proportional to 99,344.60, 137,085.18 and 56,904.92 is: 78,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.60 : 137,085.18 = 56,904.92 : x
  2. Step 2: Convert to fraction form
    99,344.60/137,085.18 = 56,904.92/x
  3. Step 3: Cross multiply
    99,344.60x = 137,085.18 × 56,904.92
  4. Step 4: Simplify right side
    99,344.60x = 7,800,821,201.09
  5. Step 5: Solve for x
    x = 7,800,821,201.09/99,344.60
  6. Step 6: Final answer
    x = 78,522.85

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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.