Home / 56,411.92-77,849.22-30,917.86

Finding the Fourth Proportional to 56,411.92, 77,849.22 and 30,917.86

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Solution

The fourth proportional to 56,411.92, 77,849.22 and 30,917.86 is: 42,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,411.92 : 77,849.22 = 30,917.86 : x
  2. Step 2: Convert to fraction form
    56,411.92/77,849.22 = 30,917.86/x
  3. Step 3: Cross multiply
    56,411.92x = 77,849.22 × 30,917.86
  4. Step 4: Simplify right side
    56,411.92x = 2,406,931,285.07
  5. Step 5: Solve for x
    x = 2,406,931,285.07/56,411.92
  6. Step 6: Final answer
    x = 42,667.07

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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.