Home / 52,689.89-72,712.08-28,818.79

Finding the Fourth Proportional to 52,689.89, 72,712.08 and 28,818.79

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Solution

The fourth proportional to 52,689.89, 72,712.08 and 28,818.79 is: 39,769.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,689.89 : 72,712.08 = 28,818.79 : x
  2. Step 2: Convert to fraction form
    52,689.89/72,712.08 = 28,818.79/x
  3. Step 3: Cross multiply
    52,689.89x = 72,712.08 × 28,818.79
  4. Step 4: Simplify right side
    52,689.89x = 2,095,473,982.20
  5. Step 5: Solve for x
    x = 2,095,473,982.20/52,689.89
  6. Step 6: Final answer
    x = 39,769.94

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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.