Home / 72,006.39-99,364.10-45,147.75

Finding the Fourth Proportional to 72,006.39, 99,364.10 and 45,147.75

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Solution

The fourth proportional to 72,006.39, 99,364.10 and 45,147.75 is: 62,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.39 : 99,364.10 = 45,147.75 : x
  2. Step 2: Convert to fraction form
    72,006.39/99,364.10 = 45,147.75/x
  3. Step 3: Cross multiply
    72,006.39x = 99,364.10 × 45,147.75
  4. Step 4: Simplify right side
    72,006.39x = 4,486,065,320.04
  5. Step 5: Solve for x
    x = 4,486,065,320.04/72,006.39
  6. Step 6: Final answer
    x = 62,300.93

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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.