Home / 91,314.65-137,002.74-57,541.46

Finding the Fourth Proportional to 91,314.65, 137,002.74 and 57,541.46

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Solution

The fourth proportional to 91,314.65, 137,002.74 and 57,541.46 is: 86,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,314.65 : 137,002.74 = 57,541.46 : x
  2. Step 2: Convert to fraction form
    91,314.65/137,002.74 = 57,541.46/x
  3. Step 3: Cross multiply
    91,314.65x = 137,002.74 × 57,541.46
  4. Step 4: Simplify right side
    91,314.65x = 7,883,336,998.59
  5. Step 5: Solve for x
    x = 7,883,336,998.59/91,314.65
  6. Step 6: Final answer
    x = 86,331.57

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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.