Home / 51,820.10-77,730.15-45,793.70

Finding the Fourth Proportional to 51,820.10, 77,730.15 and 45,793.70

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Solution

The fourth proportional to 51,820.10, 77,730.15 and 45,793.70 is: 68,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,820.10 : 77,730.15 = 45,793.70 : x
  2. Step 2: Convert to fraction form
    51,820.10/77,730.15 = 45,793.70/x
  3. Step 3: Cross multiply
    51,820.10x = 77,730.15 × 45,793.70
  4. Step 4: Simplify right side
    51,820.10x = 3,559,551,170.06
  5. Step 5: Solve for x
    x = 3,559,551,170.06/51,820.10
  6. Step 6: Final answer
    x = 68,690.55

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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.