Home / 72,408.14-99,762.17-54,176.75

Finding the Fourth Proportional to 72,408.14, 99,762.17 and 54,176.75

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Solution

The fourth proportional to 72,408.14, 99,762.17 and 54,176.75 is: 74,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,408.14 : 99,762.17 = 54,176.75 : x
  2. Step 2: Convert to fraction form
    72,408.14/99,762.17 = 54,176.75/x
  3. Step 3: Cross multiply
    72,408.14x = 99,762.17 × 54,176.75
  4. Step 4: Simplify right side
    72,408.14x = 5,404,789,373.85
  5. Step 5: Solve for x
    x = 5,404,789,373.85/72,408.14
  6. Step 6: Final answer
    x = 74,643.40

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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.