Home / 42,806.64-64,209.72-11,641.80

Finding the Fourth Proportional to 42,806.64, 64,209.72 and 11,641.80

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Solution

The fourth proportional to 42,806.64, 64,209.72 and 11,641.80 is: 17,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,806.64 : 64,209.72 = 11,641.80 : x
  2. Step 2: Convert to fraction form
    42,806.64/64,209.72 = 11,641.80/x
  3. Step 3: Cross multiply
    42,806.64x = 64,209.72 × 11,641.80
  4. Step 4: Simplify right side
    42,806.64x = 747,516,718.30
  5. Step 5: Solve for x
    x = 747,516,718.30/42,806.64
  6. Step 6: Final answer
    x = 17,462.63

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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.