Home / 90,975.86-136,488.50-51,560.66

Finding the Fourth Proportional to 90,975.86, 136,488.50 and 51,560.66

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Solution

The fourth proportional to 90,975.86, 136,488.50 and 51,560.66 is: 77,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,975.86 : 136,488.50 = 51,560.66 : x
  2. Step 2: Convert to fraction form
    90,975.86/136,488.50 = 51,560.66/x
  3. Step 3: Cross multiply
    90,975.86x = 136,488.50 × 51,560.66
  4. Step 4: Simplify right side
    90,975.86x = 7,037,436,202.16
  5. Step 5: Solve for x
    x = 7,037,436,202.16/90,975.86
  6. Step 6: Final answer
    x = 77,354.98

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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.