Home / 77,267.70-115,901.55-47,743.20

Finding the Fourth Proportional to 77,267.70, 115,901.55 and 47,743.20

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Solution

The fourth proportional to 77,267.70, 115,901.55 and 47,743.20 is: 71,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,267.70 : 115,901.55 = 47,743.20 : x
  2. Step 2: Convert to fraction form
    77,267.70/115,901.55 = 47,743.20/x
  3. Step 3: Cross multiply
    77,267.70x = 115,901.55 × 47,743.20
  4. Step 4: Simplify right side
    77,267.70x = 5,533,510,881.96
  5. Step 5: Solve for x
    x = 5,533,510,881.96/77,267.70
  6. Step 6: Final answer
    x = 71,614.80

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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.