Home / 56,117.58-77,440.23-30,966.54

Finding the Fourth Proportional to 56,117.58, 77,440.23 and 30,966.54

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Solution

The fourth proportional to 56,117.58, 77,440.23 and 30,966.54 is: 42,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,117.58 : 77,440.23 = 30,966.54 : x
  2. Step 2: Convert to fraction form
    56,117.58/77,440.23 = 30,966.54/x
  3. Step 3: Cross multiply
    56,117.58x = 77,440.23 × 30,966.54
  4. Step 4: Simplify right side
    56,117.58x = 2,398,055,979.90
  5. Step 5: Solve for x
    x = 2,398,055,979.90/56,117.58
  6. Step 6: Final answer
    x = 42,732.70

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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.