Home / 56,078.40-77,387.16-30,584.96

Finding the Fourth Proportional to 56,078.40, 77,387.16 and 30,584.96

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Solution

The fourth proportional to 56,078.40, 77,387.16 and 30,584.96 is: 42,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,078.40 : 77,387.16 = 30,584.96 : x
  2. Step 2: Convert to fraction form
    56,078.40/77,387.16 = 30,584.96/x
  3. Step 3: Cross multiply
    56,078.40x = 77,387.16 × 30,584.96
  4. Step 4: Simplify right side
    56,078.40x = 2,366,883,193.11
  5. Step 5: Solve for x
    x = 2,366,883,193.11/56,078.40
  6. Step 6: Final answer
    x = 42,206.68

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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.