Home / 44,102.52-66,154.38-12,938.40

Finding the Fourth Proportional to 44,102.52, 66,154.38 and 12,938.40

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Solution

The fourth proportional to 44,102.52, 66,154.38 and 12,938.40 is: 19,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,102.52 : 66,154.38 = 12,938.40 : x
  2. Step 2: Convert to fraction form
    44,102.52/66,154.38 = 12,938.40/x
  3. Step 3: Cross multiply
    44,102.52x = 66,154.38 × 12,938.40
  4. Step 4: Simplify right side
    44,102.52x = 855,931,830.19
  5. Step 5: Solve for x
    x = 855,931,830.19/44,102.52
  6. Step 6: Final answer
    x = 19,407.78

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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.