Home / 91,409.10-137,058.24-59,780.96

Finding the Fourth Proportional to 91,409.10, 137,058.24 and 59,780.96

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Solution

The fourth proportional to 91,409.10, 137,058.24 and 59,780.96 is: 89,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,409.10 : 137,058.24 = 59,780.96 : x
  2. Step 2: Convert to fraction form
    91,409.10/137,058.24 = 59,780.96/x
  3. Step 3: Cross multiply
    91,409.10x = 137,058.24 × 59,780.96
  4. Step 4: Simplify right side
    91,409.10x = 8,193,473,163.11
  5. Step 5: Solve for x
    x = 8,193,473,163.11/91,409.10
  6. Step 6: Final answer
    x = 89,635.20

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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.