Home / 56,276.92-77,664.18-31,126.60

Finding the Fourth Proportional to 56,276.92, 77,664.18 and 31,126.60

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Solution

The fourth proportional to 56,276.92, 77,664.18 and 31,126.60 is: 42,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,276.92 : 77,664.18 = 31,126.60 : x
  2. Step 2: Convert to fraction form
    56,276.92/77,664.18 = 31,126.60/x
  3. Step 3: Cross multiply
    56,276.92x = 77,664.18 × 31,126.60
  4. Step 4: Simplify right side
    56,276.92x = 2,417,421,865.19
  5. Step 5: Solve for x
    x = 2,417,421,865.19/56,276.92
  6. Step 6: Final answer
    x = 42,955.83

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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.