Home / 53,407.87-80,117.30-20,155.93

Finding the Fourth Proportional to 53,407.87, 80,117.30 and 20,155.93

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Solution

The fourth proportional to 53,407.87, 80,117.30 and 20,155.93 is: 30,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,407.87 : 80,117.30 = 20,155.93 : x
  2. Step 2: Convert to fraction form
    53,407.87/80,117.30 = 20,155.93/x
  3. Step 3: Cross multiply
    53,407.87x = 80,117.30 × 20,155.93
  4. Step 4: Simplify right side
    53,407.87x = 1,614,838,690.59
  5. Step 5: Solve for x
    x = 1,614,838,690.59/53,407.87
  6. Step 6: Final answer
    x = 30,235.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.