Home / 56,370.72-77,793.53-30,878.62

Finding the Fourth Proportional to 56,370.72, 77,793.53 and 30,878.62

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Solution

The fourth proportional to 56,370.72, 77,793.53 and 30,878.62 is: 42,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,370.72 : 77,793.53 = 30,878.62 : x
  2. Step 2: Convert to fraction form
    56,370.72/77,793.53 = 30,878.62/x
  3. Step 3: Cross multiply
    56,370.72x = 77,793.53 × 30,878.62
  4. Step 4: Simplify right side
    56,370.72x = 2,402,156,545.87
  5. Step 5: Solve for x
    x = 2,402,156,545.87/56,370.72
  6. Step 6: Final answer
    x = 42,613.55

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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.