Home / 53,386.31-80,127.77-28,447.43

Finding the Fourth Proportional to 53,386.31, 80,127.77 and 28,447.43

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Solution

The fourth proportional to 53,386.31, 80,127.77 and 28,447.43 is: 42,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,386.31 : 80,127.77 = 28,447.43 : x
  2. Step 2: Convert to fraction form
    53,386.31/80,127.77 = 28,447.43/x
  3. Step 3: Cross multiply
    53,386.31x = 80,127.77 × 28,447.43
  4. Step 4: Simplify right side
    53,386.31x = 2,279,429,128.13
  5. Step 5: Solve for x
    x = 2,279,429,128.13/53,386.31
  6. Step 6: Final answer
    x = 42,696.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.