Home / 89,686.97-134,438.14-39,790.56

Finding the Fourth Proportional to 89,686.97, 134,438.14 and 39,790.56

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Solution

The fourth proportional to 89,686.97, 134,438.14 and 39,790.56 is: 59,644.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,686.97 : 134,438.14 = 39,790.56 : x
  2. Step 2: Convert to fraction form
    89,686.97/134,438.14 = 39,790.56/x
  3. Step 3: Cross multiply
    89,686.97x = 134,438.14 × 39,790.56
  4. Step 4: Simplify right side
    89,686.97x = 5,349,368,875.96
  5. Step 5: Solve for x
    x = 5,349,368,875.96/89,686.97
  6. Step 6: Final answer
    x = 59,644.88

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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.