Home / 51,124.20-76,686.30-47,437.80

Finding the Fourth Proportional to 51,124.20, 76,686.30 and 47,437.80

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Solution

The fourth proportional to 51,124.20, 76,686.30 and 47,437.80 is: 71,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,124.20 : 76,686.30 = 47,437.80 : x
  2. Step 2: Convert to fraction form
    51,124.20/76,686.30 = 47,437.80/x
  3. Step 3: Cross multiply
    51,124.20x = 76,686.30 × 47,437.80
  4. Step 4: Simplify right side
    51,124.20x = 3,637,829,362.14
  5. Step 5: Solve for x
    x = 3,637,829,362.14/51,124.20
  6. Step 6: Final answer
    x = 71,156.70

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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.