Home / 63,681.28-87,879.36-35,385.76

Finding the Fourth Proportional to 63,681.28, 87,879.36 and 35,385.76

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Solution

The fourth proportional to 63,681.28, 87,879.36 and 35,385.76 is: 48,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,681.28 : 87,879.36 = 35,385.76 : x
  2. Step 2: Convert to fraction form
    63,681.28/87,879.36 = 35,385.76/x
  3. Step 3: Cross multiply
    63,681.28x = 87,879.36 × 35,385.76
  4. Step 4: Simplify right side
    63,681.28x = 3,109,677,941.91
  5. Step 5: Solve for x
    x = 3,109,677,941.91/63,681.28
  6. Step 6: Final answer
    x = 48,831.90

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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.