Home / 86,253.15-129,335.95-39,465.93

Finding the Fourth Proportional to 86,253.15, 129,335.95 and 39,465.93

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Solution

The fourth proportional to 86,253.15, 129,335.95 and 39,465.93 is: 59,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,253.15 : 129,335.95 = 39,465.93 : x
  2. Step 2: Convert to fraction form
    86,253.15/129,335.95 = 39,465.93/x
  3. Step 3: Cross multiply
    86,253.15x = 129,335.95 × 39,465.93
  4. Step 4: Simplify right side
    86,253.15x = 5,104,363,549.18
  5. Step 5: Solve for x
    x = 5,104,363,549.18/86,253.15
  6. Step 6: Final answer
    x = 59,178.87

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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.