Home / 77,009.13-115,250.85-64,543.23

Finding the Fourth Proportional to 77,009.13, 115,250.85 and 64,543.23

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Solution

The fourth proportional to 77,009.13, 115,250.85 and 64,543.23 is: 96,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,009.13 : 115,250.85 = 64,543.23 : x
  2. Step 2: Convert to fraction form
    77,009.13/115,250.85 = 64,543.23/x
  3. Step 3: Cross multiply
    77,009.13x = 115,250.85 × 64,543.23
  4. Step 4: Simplify right side
    77,009.13x = 7,438,662,119.25
  5. Step 5: Solve for x
    x = 7,438,662,119.25/77,009.13
  6. Step 6: Final answer
    x = 96,594.55

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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.