Home / 52,486.56-78,729.54-13,043.65

Finding the Fourth Proportional to 52,486.56, 78,729.54 and 13,043.65

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Solution

The fourth proportional to 52,486.56, 78,729.54 and 13,043.65 is: 19,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,486.56 : 78,729.54 = 13,043.65 : x
  2. Step 2: Convert to fraction form
    52,486.56/78,729.54 = 13,043.65/x
  3. Step 3: Cross multiply
    52,486.56x = 78,729.54 × 13,043.65
  4. Step 4: Simplify right side
    52,486.56x = 1,026,920,564.42
  5. Step 5: Solve for x
    x = 1,026,920,564.42/52,486.56
  6. Step 6: Final answer
    x = 19,565.40

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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.