Home / 87,943.84-121,368.52-49,690.16

Finding the Fourth Proportional to 87,943.84, 121,368.52 and 49,690.16

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Solution

The fourth proportional to 87,943.84, 121,368.52 and 49,690.16 is: 68,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,943.84 : 121,368.52 = 49,690.16 : x
  2. Step 2: Convert to fraction form
    87,943.84/121,368.52 = 49,690.16/x
  3. Step 3: Cross multiply
    87,943.84x = 121,368.52 × 49,690.16
  4. Step 4: Simplify right side
    87,943.84x = 6,030,821,177.76
  5. Step 5: Solve for x
    x = 6,030,821,177.76/87,943.84
  6. Step 6: Final answer
    x = 68,575.82

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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.