Home / 91,379.86-137,070.36-59,816.42

Finding the Fourth Proportional to 91,379.86, 137,070.36 and 59,816.42

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Solution

The fourth proportional to 91,379.86, 137,070.36 and 59,816.42 is: 89,725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,379.86 : 137,070.36 = 59,816.42 : x
  2. Step 2: Convert to fraction form
    91,379.86/137,070.36 = 59,816.42/x
  3. Step 3: Cross multiply
    91,379.86x = 137,070.36 × 59,816.42
  4. Step 4: Simplify right side
    91,379.86x = 8,199,057,537.96
  5. Step 5: Solve for x
    x = 8,199,057,537.96/91,379.86
  6. Step 6: Final answer
    x = 89,725.00

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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.