Home / 72,027.28-99,369.90-45,122.92

Finding the Fourth Proportional to 72,027.28, 99,369.90 and 45,122.92

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Solution

The fourth proportional to 72,027.28, 99,369.90 and 45,122.92 is: 62,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.28 : 99,369.90 = 45,122.92 : x
  2. Step 2: Convert to fraction form
    72,027.28/99,369.90 = 45,122.92/x
  3. Step 3: Cross multiply
    72,027.28x = 99,369.90 × 45,122.92
  4. Step 4: Simplify right side
    72,027.28x = 4,483,860,048.11
  5. Step 5: Solve for x
    x = 4,483,860,048.11/72,027.28
  6. Step 6: Final answer
    x = 62,252.25

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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.