Home / 72,365.47-99,861.45-40,532.74

Finding the Fourth Proportional to 72,365.47, 99,861.45 and 40,532.74

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Solution

The fourth proportional to 72,365.47, 99,861.45 and 40,532.74 is: 55,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,365.47 : 99,861.45 = 40,532.74 : x
  2. Step 2: Convert to fraction form
    72,365.47/99,861.45 = 40,532.74/x
  3. Step 3: Cross multiply
    72,365.47x = 99,861.45 × 40,532.74
  4. Step 4: Simplify right side
    72,365.47x = 4,047,658,188.87
  5. Step 5: Solve for x
    x = 4,047,658,188.87/72,365.47
  6. Step 6: Final answer
    x = 55,933.56

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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.