Home / 91,981.48-138,025.43-38,669.24

Finding the Fourth Proportional to 91,981.48, 138,025.43 and 38,669.24

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Solution

The fourth proportional to 91,981.48, 138,025.43 and 38,669.24 is: 58,026.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,981.48 : 138,025.43 = 38,669.24 : x
  2. Step 2: Convert to fraction form
    91,981.48/138,025.43 = 38,669.24/x
  3. Step 3: Cross multiply
    91,981.48x = 138,025.43 × 38,669.24
  4. Step 4: Simplify right side
    91,981.48x = 5,337,338,478.77
  5. Step 5: Solve for x
    x = 5,337,338,478.77/91,981.48
  6. Step 6: Final answer
    x = 58,026.23

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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.