Home / 83,616.42-125,424.13-20,436.87

Finding the Fourth Proportional to 83,616.42, 125,424.13 and 20,436.87

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Solution

The fourth proportional to 83,616.42, 125,424.13 and 20,436.87 is: 30,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.42 : 125,424.13 = 20,436.87 : x
  2. Step 2: Convert to fraction form
    83,616.42/125,424.13 = 20,436.87/x
  3. Step 3: Cross multiply
    83,616.42x = 125,424.13 × 20,436.87
  4. Step 4: Simplify right side
    83,616.42x = 2,563,276,639.67
  5. Step 5: Solve for x
    x = 2,563,276,639.67/83,616.42
  6. Step 6: Final answer
    x = 30,655.18

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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.