Home / 98,917.79-136,553.85-56,468.12

Finding the Fourth Proportional to 98,917.79, 136,553.85 and 56,468.12

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Solution

The fourth proportional to 98,917.79, 136,553.85 and 56,468.12 is: 77,953.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,917.79 : 136,553.85 = 56,468.12 : x
  2. Step 2: Convert to fraction form
    98,917.79/136,553.85 = 56,468.12/x
  3. Step 3: Cross multiply
    98,917.79x = 136,553.85 × 56,468.12
  4. Step 4: Simplify right side
    98,917.79x = 7,710,938,505.49
  5. Step 5: Solve for x
    x = 7,710,938,505.49/98,917.79
  6. Step 6: Final answer
    x = 77,953.00

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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.