Home / 98,930.28-136,520.80-56,480.52

Finding the Fourth Proportional to 98,930.28, 136,520.80 and 56,480.52

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Solution

The fourth proportional to 98,930.28, 136,520.80 and 56,480.52 is: 77,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,930.28 : 136,520.80 = 56,480.52 : x
  2. Step 2: Convert to fraction form
    98,930.28/136,520.80 = 56,480.52/x
  3. Step 3: Cross multiply
    98,930.28x = 136,520.80 × 56,480.52
  4. Step 4: Simplify right side
    98,930.28x = 7,710,765,774.82
  5. Step 5: Solve for x
    x = 7,710,765,774.82/98,930.28
  6. Step 6: Final answer
    x = 77,941.41

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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.