Home / 83,688.12-125,550.54-39,315.24

Finding the Fourth Proportional to 83,688.12, 125,550.54 and 39,315.24

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Solution

The fourth proportional to 83,688.12, 125,550.54 and 39,315.24 is: 58,981.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.12 : 125,550.54 = 39,315.24 : x
  2. Step 2: Convert to fraction form
    83,688.12/125,550.54 = 39,315.24/x
  3. Step 3: Cross multiply
    83,688.12x = 125,550.54 × 39,315.24
  4. Step 4: Simplify right side
    83,688.12x = 4,936,049,612.23
  5. Step 5: Solve for x
    x = 4,936,049,612.23/83,688.12
  6. Step 6: Final answer
    x = 58,981.49

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1.5x scale

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.