Home / 55,890.87-77,129.72-30,397.53

Finding the Fourth Proportional to 55,890.87, 77,129.72 and 30,397.53

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Solution

The fourth proportional to 55,890.87, 77,129.72 and 30,397.53 is: 41,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,890.87 : 77,129.72 = 30,397.53 : x
  2. Step 2: Convert to fraction form
    55,890.87/77,129.72 = 30,397.53/x
  3. Step 3: Cross multiply
    55,890.87x = 77,129.72 × 30,397.53
  4. Step 4: Simplify right side
    55,890.87x = 2,344,552,977.59
  5. Step 5: Solve for x
    x = 2,344,552,977.59/55,890.87
  6. Step 6: Final answer
    x = 41,948.77

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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.