Home / 88,305.28-121,859.60-48,018.72

Finding the Fourth Proportional to 88,305.28, 121,859.60 and 48,018.72

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Solution

The fourth proportional to 88,305.28, 121,859.60 and 48,018.72 is: 66,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,305.28 : 121,859.60 = 48,018.72 : x
  2. Step 2: Convert to fraction form
    88,305.28/121,859.60 = 48,018.72/x
  3. Step 3: Cross multiply
    88,305.28x = 121,859.60 × 48,018.72
  4. Step 4: Simplify right side
    88,305.28x = 5,851,542,011.71
  5. Step 5: Solve for x
    x = 5,851,542,011.71/88,305.28
  6. Step 6: Final answer
    x = 66,264.92

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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.