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Finding the Fourth Proportional to 56,127.80, 77,393.54 and 45,886.91

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Solution

The fourth proportional to 56,127.80, 77,393.54 and 45,886.91 is: 63,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,127.80 : 77,393.54 = 45,886.91 : x
  2. Step 2: Convert to fraction form
    56,127.80/77,393.54 = 45,886.91/x
  3. Step 3: Cross multiply
    56,127.80x = 77,393.54 × 45,886.91
  4. Step 4: Simplify right side
    56,127.80x = 3,551,350,132.31
  5. Step 5: Solve for x
    x = 3,551,350,132.31/56,127.80
  6. Step 6: Final answer
    x = 63,272.57

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1.5x scale

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.