Home / 60,789.18-91,223.78-21,345.24

Finding the Fourth Proportional to 60,789.18, 91,223.78 and 21,345.24

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Solution

The fourth proportional to 60,789.18, 91,223.78 and 21,345.24 is: 32,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,789.18 : 91,223.78 = 21,345.24 : x
  2. Step 2: Convert to fraction form
    60,789.18/91,223.78 = 21,345.24/x
  3. Step 3: Cross multiply
    60,789.18x = 91,223.78 × 21,345.24
  4. Step 4: Simplify right side
    60,789.18x = 1,947,193,477.81
  5. Step 5: Solve for x
    x = 1,947,193,477.81/60,789.18
  6. Step 6: Final answer
    x = 32,031.91

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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.