Home / 51,810.45-77,715.68-47,490.45

Finding the Fourth Proportional to 51,810.45, 77,715.68 and 47,490.45

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Solution

The fourth proportional to 51,810.45, 77,715.68 and 47,490.45 is: 71,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,810.45 : 77,715.68 = 47,490.45 : x
  2. Step 2: Convert to fraction form
    51,810.45/77,715.68 = 47,490.45/x
  3. Step 3: Cross multiply
    51,810.45x = 77,715.68 × 47,490.45
  4. Step 4: Simplify right side
    51,810.45x = 3,690,752,377.80
  5. Step 5: Solve for x
    x = 3,690,752,377.80/51,810.45
  6. Step 6: Final answer
    x = 71,235.68

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1.5x scale

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.