Home / 91,561.87-137,386.55-58,319.47

Finding the Fourth Proportional to 91,561.87, 137,386.55 and 58,319.47

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Solution

The fourth proportional to 91,561.87, 137,386.55 and 58,319.47 is: 87,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,561.87 : 137,386.55 = 58,319.47 : x
  2. Step 2: Convert to fraction form
    91,561.87/137,386.55 = 58,319.47/x
  3. Step 3: Cross multiply
    91,561.87x = 137,386.55 × 58,319.47
  4. Step 4: Simplify right side
    91,561.87x = 8,012,309,802.60
  5. Step 5: Solve for x
    x = 8,012,309,802.60/91,561.87
  6. Step 6: Final answer
    x = 87,507.06

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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.