Home / 98,962.91-136,587.11-56,521.45

Finding the Fourth Proportional to 98,962.91, 136,587.11 and 56,521.45

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Solution

The fourth proportional to 98,962.91, 136,587.11 and 56,521.45 is: 78,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,962.91 : 136,587.11 = 56,521.45 : x
  2. Step 2: Convert to fraction form
    98,962.91/136,587.11 = 56,521.45/x
  3. Step 3: Cross multiply
    98,962.91x = 136,587.11 × 56,521.45
  4. Step 4: Simplify right side
    98,962.91x = 7,720,100,946.27
  5. Step 5: Solve for x
    x = 7,720,100,946.27/98,962.91
  6. Step 6: Final answer
    x = 78,010.04

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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.