Home / 72,529.28-100,095.60-40,265.60

Finding the Fourth Proportional to 72,529.28, 100,095.60 and 40,265.60

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Solution

The fourth proportional to 72,529.28, 100,095.60 and 40,265.60 is: 55,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,529.28 : 100,095.60 = 40,265.60 : x
  2. Step 2: Convert to fraction form
    72,529.28/100,095.60 = 40,265.60/x
  3. Step 3: Cross multiply
    72,529.28x = 100,095.60 × 40,265.60
  4. Step 4: Simplify right side
    72,529.28x = 4,030,409,391.36
  5. Step 5: Solve for x
    x = 4,030,409,391.36/72,529.28
  6. Step 6: Final answer
    x = 55,569.41

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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.