Home / 98,972.61-136,581.89-53,650.77

Finding the Fourth Proportional to 98,972.61, 136,581.89 and 53,650.77

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Solution

The fourth proportional to 98,972.61, 136,581.89 and 53,650.77 is: 74,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,972.61 : 136,581.89 = 53,650.77 : x
  2. Step 2: Convert to fraction form
    98,972.61/136,581.89 = 53,650.77/x
  3. Step 3: Cross multiply
    98,972.61x = 136,581.89 × 53,650.77
  4. Step 4: Simplify right side
    98,972.61x = 7,327,723,298.30
  5. Step 5: Solve for x
    x = 7,327,723,298.30/98,972.61
  6. Step 6: Final answer
    x = 74,037.89

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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.