Home / 77,515.20-106,942.28-48,827.16

Finding the Fourth Proportional to 77,515.20, 106,942.28 and 48,827.16

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Solution

The fourth proportional to 77,515.20, 106,942.28 and 48,827.16 is: 67,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,515.20 : 106,942.28 = 48,827.16 : x
  2. Step 2: Convert to fraction form
    77,515.20/106,942.28 = 48,827.16/x
  3. Step 3: Cross multiply
    77,515.20x = 106,942.28 × 48,827.16
  4. Step 4: Simplify right side
    77,515.20x = 5,221,687,572.19
  5. Step 5: Solve for x
    x = 5,221,687,572.19/77,515.20
  6. Step 6: Final answer
    x = 67,363.40

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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.