Home / 98,898.56-136,479.96-56,456.24

Finding the Fourth Proportional to 98,898.56, 136,479.96 and 56,456.24

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Solution

The fourth proportional to 98,898.56, 136,479.96 and 56,456.24 is: 77,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,898.56 : 136,479.96 = 56,456.24 : x
  2. Step 2: Convert to fraction form
    98,898.56/136,479.96 = 56,456.24/x
  3. Step 3: Cross multiply
    98,898.56x = 136,479.96 × 56,456.24
  4. Step 4: Simplify right side
    98,898.56x = 7,705,145,376.95
  5. Step 5: Solve for x
    x = 7,705,145,376.95/98,898.56
  6. Step 6: Final answer
    x = 77,909.58

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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.