Home / 72,368.28-108,535.41-40,792.05

Finding the Fourth Proportional to 72,368.28, 108,535.41 and 40,792.05

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Solution

The fourth proportional to 72,368.28, 108,535.41 and 40,792.05 is: 61,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,368.28 : 108,535.41 = 40,792.05 : x
  2. Step 2: Convert to fraction form
    72,368.28/108,535.41 = 40,792.05/x
  3. Step 3: Cross multiply
    72,368.28x = 108,535.41 × 40,792.05
  4. Step 4: Simplify right side
    72,368.28x = 4,427,381,871.49
  5. Step 5: Solve for x
    x = 4,427,381,871.49/72,368.28
  6. Step 6: Final answer
    x = 61,178.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.