Home / 56,785.76-78,373.68-31,643.36

Finding the Fourth Proportional to 56,785.76, 78,373.68 and 31,643.36

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Solution

The fourth proportional to 56,785.76, 78,373.68 and 31,643.36 is: 43,673.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,785.76 : 78,373.68 = 31,643.36 : x
  2. Step 2: Convert to fraction form
    56,785.76/78,373.68 = 31,643.36/x
  3. Step 3: Cross multiply
    56,785.76x = 78,373.68 × 31,643.36
  4. Step 4: Simplify right side
    56,785.76x = 2,480,006,570.76
  5. Step 5: Solve for x
    x = 2,480,006,570.76/56,785.76
  6. Step 6: Final answer
    x = 43,673.04

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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.