Home / 87,870.02-121,260.51-47,583.72

Finding the Fourth Proportional to 87,870.02, 121,260.51 and 47,583.72

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Solution

The fourth proportional to 87,870.02, 121,260.51 and 47,583.72 is: 65,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.02 : 121,260.51 = 47,583.72 : x
  2. Step 2: Convert to fraction form
    87,870.02/121,260.51 = 47,583.72/x
  3. Step 3: Cross multiply
    87,870.02x = 121,260.51 × 47,583.72
  4. Step 4: Simplify right side
    87,870.02x = 5,770,026,154.90
  5. Step 5: Solve for x
    x = 5,770,026,154.90/87,870.02
  6. Step 6: Final answer
    x = 65,665.47

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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.