Home / 55,881.32-77,114.68-30,730.82

Finding the Fourth Proportional to 55,881.32, 77,114.68 and 30,730.82

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Solution

The fourth proportional to 55,881.32, 77,114.68 and 30,730.82 is: 42,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,881.32 : 77,114.68 = 30,730.82 : x
  2. Step 2: Convert to fraction form
    55,881.32/77,114.68 = 30,730.82/x
  3. Step 3: Cross multiply
    55,881.32x = 77,114.68 × 30,730.82
  4. Step 4: Simplify right side
    55,881.32x = 2,369,797,350.44
  5. Step 5: Solve for x
    x = 2,369,797,350.44/55,881.32
  6. Step 6: Final answer
    x = 42,407.68

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1.5x scale

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.