Home / 42,921.60-64,313.28-26,471.04

Finding the Fourth Proportional to 42,921.60, 64,313.28 and 26,471.04

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Solution

The fourth proportional to 42,921.60, 64,313.28 and 26,471.04 is: 39,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,921.60 : 64,313.28 = 26,471.04 : x
  2. Step 2: Convert to fraction form
    42,921.60/64,313.28 = 26,471.04/x
  3. Step 3: Cross multiply
    42,921.60x = 64,313.28 × 26,471.04
  4. Step 4: Simplify right side
    42,921.60x = 1,702,439,407.41
  5. Step 5: Solve for x
    x = 1,702,439,407.41/42,921.60
  6. Step 6: Final answer
    x = 39,663.93

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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.