Home / 53,726.80-74,121.76-31,061.64

Finding the Fourth Proportional to 53,726.80, 74,121.76 and 31,061.64

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Solution

The fourth proportional to 53,726.80, 74,121.76 and 31,061.64 is: 42,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,726.80 : 74,121.76 = 31,061.64 : x
  2. Step 2: Convert to fraction form
    53,726.80/74,121.76 = 31,061.64/x
  3. Step 3: Cross multiply
    53,726.80x = 74,121.76 × 31,061.64
  4. Step 4: Simplify right side
    53,726.80x = 2,302,343,425.29
  5. Step 5: Solve for x
    x = 2,302,343,425.29/53,726.80
  6. Step 6: Final answer
    x = 42,852.79

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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.