Home / 56,155.11-77,493.45-30,661.39

Finding the Fourth Proportional to 56,155.11, 77,493.45 and 30,661.39

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Solution

The fourth proportional to 56,155.11, 77,493.45 and 30,661.39 is: 42,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,155.11 : 77,493.45 = 30,661.39 : x
  2. Step 2: Convert to fraction form
    56,155.11/77,493.45 = 30,661.39/x
  3. Step 3: Cross multiply
    56,155.11x = 77,493.45 × 30,661.39
  4. Step 4: Simplify right side
    56,155.11x = 2,376,057,104.74
  5. Step 5: Solve for x
    x = 2,376,057,104.74/56,155.11
  6. Step 6: Final answer
    x = 42,312.40

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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.