Home / 83,571.12-115,337.64-58,070.70

Finding the Fourth Proportional to 83,571.12, 115,337.64 and 58,070.70

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Solution

The fourth proportional to 83,571.12, 115,337.64 and 58,070.70 is: 80,144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,571.12 : 115,337.64 = 58,070.70 : x
  2. Step 2: Convert to fraction form
    83,571.12/115,337.64 = 58,070.70/x
  3. Step 3: Cross multiply
    83,571.12x = 115,337.64 × 58,070.70
  4. Step 4: Simplify right side
    83,571.12x = 6,697,737,491.15
  5. Step 5: Solve for x
    x = 6,697,737,491.15/83,571.12
  6. Step 6: Final answer
    x = 80,144.16

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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.