Home / 115,543.90-159,447.72-64,553.50

Finding the Fourth Proportional to 115,543.90, 159,447.72 and 64,553.50

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Solution

The fourth proportional to 115,543.90, 159,447.72 and 64,553.50 is: 89,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,543.90 : 159,447.72 = 64,553.50 : x
  2. Step 2: Convert to fraction form
    115,543.90/159,447.72 = 64,553.50/x
  3. Step 3: Cross multiply
    115,543.90x = 159,447.72 × 64,553.50
  4. Step 4: Simplify right side
    115,543.90x = 10,292,908,393.02
  5. Step 5: Solve for x
    x = 10,292,908,393.02/115,543.90
  6. Step 6: Final answer
    x = 89,082.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.