Home / 91,569.74-137,108.53-58,108.64

Finding the Fourth Proportional to 91,569.74, 137,108.53 and 58,108.64

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Solution

The fourth proportional to 91,569.74, 137,108.53 and 58,108.64 is: 87,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,569.74 : 137,108.53 = 58,108.64 : x
  2. Step 2: Convert to fraction form
    91,569.74/137,108.53 = 58,108.64/x
  3. Step 3: Cross multiply
    91,569.74x = 137,108.53 × 58,108.64
  4. Step 4: Simplify right side
    91,569.74x = 7,967,190,210.70
  5. Step 5: Solve for x
    x = 7,967,190,210.70/91,569.74
  6. Step 6: Final answer
    x = 87,006.80

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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.