Home / 86,045.68-129,058.80-29,875.96

Finding the Fourth Proportional to 86,045.68, 129,058.80 and 29,875.96

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Solution

The fourth proportional to 86,045.68, 129,058.80 and 29,875.96 is: 44,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,045.68 : 129,058.80 = 29,875.96 : x
  2. Step 2: Convert to fraction form
    86,045.68/129,058.80 = 29,875.96/x
  3. Step 3: Cross multiply
    86,045.68x = 129,058.80 × 29,875.96
  4. Step 4: Simplify right side
    86,045.68x = 3,855,755,546.45
  5. Step 5: Solve for x
    x = 3,855,755,546.45/86,045.68
  6. Step 6: Final answer
    x = 44,810.57

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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.