Home / 52,778.61-72,833.72-28,905.21

Finding the Fourth Proportional to 52,778.61, 72,833.72 and 28,905.21

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Solution

The fourth proportional to 52,778.61, 72,833.72 and 28,905.21 is: 39,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,778.61 : 72,833.72 = 28,905.21 : x
  2. Step 2: Convert to fraction form
    52,778.61/72,833.72 = 28,905.21/x
  3. Step 3: Cross multiply
    52,778.61x = 72,833.72 × 28,905.21
  4. Step 4: Simplify right side
    52,778.61x = 2,105,273,827.16
  5. Step 5: Solve for x
    x = 2,105,273,827.16/52,778.61
  6. Step 6: Final answer
    x = 39,888.77

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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.