Home / 90,948.61-136,441.41-38,358.28

Finding the Fourth Proportional to 90,948.61, 136,441.41 and 38,358.28

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Solution

The fourth proportional to 90,948.61, 136,441.41 and 38,358.28 is: 57,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,948.61 : 136,441.41 = 38,358.28 : x
  2. Step 2: Convert to fraction form
    90,948.61/136,441.41 = 38,358.28/x
  3. Step 3: Cross multiply
    90,948.61x = 136,441.41 × 38,358.28
  4. Step 4: Simplify right side
    90,948.61x = 5,233,657,808.37
  5. Step 5: Solve for x
    x = 5,233,657,808.37/90,948.61
  6. Step 6: Final answer
    x = 57,545.22

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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.