Home / 115,044.48-172,510.20-42,947.28

Finding the Fourth Proportional to 115,044.48, 172,510.20 and 42,947.28

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Solution

The fourth proportional to 115,044.48, 172,510.20 and 42,947.28 is: 64,399.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,044.48 : 172,510.20 = 42,947.28 : x
  2. Step 2: Convert to fraction form
    115,044.48/172,510.20 = 42,947.28/x
  3. Step 3: Cross multiply
    115,044.48x = 172,510.20 × 42,947.28
  4. Step 4: Simplify right side
    115,044.48x = 7,408,843,862.26
  5. Step 5: Solve for x
    x = 7,408,843,862.26/115,044.48
  6. Step 6: Final answer
    x = 64,399.82

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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.