Home / 56,132.58-77,460.90-30,981.54

Finding the Fourth Proportional to 56,132.58, 77,460.90 and 30,981.54

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Solution

The fourth proportional to 56,132.58, 77,460.90 and 30,981.54 is: 42,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,132.58 : 77,460.90 = 30,981.54 : x
  2. Step 2: Convert to fraction form
    56,132.58/77,460.90 = 30,981.54/x
  3. Step 3: Cross multiply
    56,132.58x = 77,460.90 × 30,981.54
  4. Step 4: Simplify right side
    56,132.58x = 2,399,857,971.79
  5. Step 5: Solve for x
    x = 2,399,857,971.79/56,132.58
  6. Step 6: Final answer
    x = 42,753.39

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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.