Home / 72,416.89-99,933.60-40,151.35

Finding the Fourth Proportional to 72,416.89, 99,933.60 and 40,151.35

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Solution

The fourth proportional to 72,416.89, 99,933.60 and 40,151.35 is: 55,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,416.89 : 99,933.60 = 40,151.35 : x
  2. Step 2: Convert to fraction form
    72,416.89/99,933.60 = 40,151.35/x
  3. Step 3: Cross multiply
    72,416.89x = 99,933.60 × 40,151.35
  4. Step 4: Simplify right side
    72,416.89x = 4,012,468,950.36
  5. Step 5: Solve for x
    x = 4,012,468,950.36/72,416.89
  6. Step 6: Final answer
    x = 55,407.92

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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.