Home / 64,259.28-88,681.20-40,377.12

Finding the Fourth Proportional to 64,259.28, 88,681.20 and 40,377.12

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Solution

The fourth proportional to 64,259.28, 88,681.20 and 40,377.12 is: 55,722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,259.28 : 88,681.20 = 40,377.12 : x
  2. Step 2: Convert to fraction form
    64,259.28/88,681.20 = 40,377.12/x
  3. Step 3: Cross multiply
    64,259.28x = 88,681.20 × 40,377.12
  4. Step 4: Simplify right side
    64,259.28x = 3,580,691,454.14
  5. Step 5: Solve for x
    x = 3,580,691,454.14/64,259.28
  6. Step 6: Final answer
    x = 55,722.56

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1.5x scale

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.