Home / 52,810.20-72,877.86-28,938.36

Finding the Fourth Proportional to 52,810.20, 72,877.86 and 28,938.36

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Solution

The fourth proportional to 52,810.20, 72,877.86 and 28,938.36 is: 39,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,810.20 : 72,877.86 = 28,938.36 : x
  2. Step 2: Convert to fraction form
    52,810.20/72,877.86 = 28,938.36/x
  3. Step 3: Cross multiply
    52,810.20x = 72,877.86 × 28,938.36
  4. Step 4: Simplify right side
    52,810.20x = 2,108,965,748.71
  5. Step 5: Solve for x
    x = 2,108,965,748.71/52,810.20
  6. Step 6: Final answer
    x = 39,934.82

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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.