Home / 98,581.95-136,057.20-56,144.43

Finding the Fourth Proportional to 98,581.95, 136,057.20 and 56,144.43

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Solution

The fourth proportional to 98,581.95, 136,057.20 and 56,144.43 is: 77,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,581.95 : 136,057.20 = 56,144.43 : x
  2. Step 2: Convert to fraction form
    98,581.95/136,057.20 = 56,144.43/x
  3. Step 3: Cross multiply
    98,581.95x = 136,057.20 × 56,144.43
  4. Step 4: Simplify right side
    98,581.95x = 7,638,853,941.40
  5. Step 5: Solve for x
    x = 7,638,853,941.40/98,581.95
  6. Step 6: Final answer
    x = 77,487.35

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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.