Home / 51,036.65-70,433.75-28,380.70

Finding the Fourth Proportional to 51,036.65, 70,433.75 and 28,380.70

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Solution

The fourth proportional to 51,036.65, 70,433.75 and 28,380.70 is: 39,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,036.65 : 70,433.75 = 28,380.70 : x
  2. Step 2: Convert to fraction form
    51,036.65/70,433.75 = 28,380.70/x
  3. Step 3: Cross multiply
    51,036.65x = 70,433.75 × 28,380.70
  4. Step 4: Simplify right side
    51,036.65x = 1,998,959,023.49
  5. Step 5: Solve for x
    x = 1,998,959,023.49/51,036.65
  6. Step 6: Final answer
    x = 39,167.13

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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.