Home / 87,888.10-121,285.89-47,601.76

Finding the Fourth Proportional to 87,888.10, 121,285.89 and 47,601.76

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Solution

The fourth proportional to 87,888.10, 121,285.89 and 47,601.76 is: 65,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,888.10 : 121,285.89 = 47,601.76 : x
  2. Step 2: Convert to fraction form
    87,888.10/121,285.89 = 47,601.76/x
  3. Step 3: Cross multiply
    87,888.10x = 121,285.89 × 47,601.76
  4. Step 4: Simplify right side
    87,888.10x = 5,773,421,827.17
  5. Step 5: Solve for x
    x = 5,773,421,827.17/87,888.10
  6. Step 6: Final answer
    x = 65,690.60

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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.