Home / 55,720.71-76,894.57-31,521.15

Finding the Fourth Proportional to 55,720.71, 76,894.57 and 31,521.15

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Solution

The fourth proportional to 55,720.71, 76,894.57 and 31,521.15 is: 43,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,720.71 : 76,894.57 = 31,521.15 : x
  2. Step 2: Convert to fraction form
    55,720.71/76,894.57 = 31,521.15/x
  3. Step 3: Cross multiply
    55,720.71x = 76,894.57 × 31,521.15
  4. Step 4: Simplify right side
    55,720.71x = 2,423,805,275.16
  5. Step 5: Solve for x
    x = 2,423,805,275.16/55,720.71
  6. Step 6: Final answer
    x = 43,499.18

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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.