Home / 91,358.44-137,053.38-31,384.06

Finding the Fourth Proportional to 91,358.44, 137,053.38 and 31,384.06

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Solution

The fourth proportional to 91,358.44, 137,053.38 and 31,384.06 is: 47,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,358.44 : 137,053.38 = 31,384.06 : x
  2. Step 2: Convert to fraction form
    91,358.44/137,053.38 = 31,384.06/x
  3. Step 3: Cross multiply
    91,358.44x = 137,053.38 × 31,384.06
  4. Step 4: Simplify right side
    91,358.44x = 4,301,291,501.12
  5. Step 5: Solve for x
    x = 4,301,291,501.12/91,358.44
  6. Step 6: Final answer
    x = 47,081.49

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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.