Home / 51,865.20-77,688.45-43,117.20

Finding the Fourth Proportional to 51,865.20, 77,688.45 and 43,117.20

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Solution

The fourth proportional to 51,865.20, 77,688.45 and 43,117.20 is: 64,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,865.20 : 77,688.45 = 43,117.20 : x
  2. Step 2: Convert to fraction form
    51,865.20/77,688.45 = 43,117.20/x
  3. Step 3: Cross multiply
    51,865.20x = 77,688.45 × 43,117.20
  4. Step 4: Simplify right side
    51,865.20x = 3,349,708,436.34
  5. Step 5: Solve for x
    x = 3,349,708,436.34/51,865.20
  6. Step 6: Final answer
    x = 64,584.89

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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.