Home / 77,471.55-106,933.65-45,650.70

Finding the Fourth Proportional to 77,471.55, 106,933.65 and 45,650.70

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Solution

The fourth proportional to 77,471.55, 106,933.65 and 45,650.70 is: 63,011.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,471.55 : 106,933.65 = 45,650.70 : x
  2. Step 2: Convert to fraction form
    77,471.55/106,933.65 = 45,650.70/x
  3. Step 3: Cross multiply
    77,471.55x = 106,933.65 × 45,650.70
  4. Step 4: Simplify right side
    77,471.55x = 4,881,595,976.06
  5. Step 5: Solve for x
    x = 4,881,595,976.06/77,471.55
  6. Step 6: Final answer
    x = 63,011.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.