Home / 57,929.76-86,901.52-20,482.08

Finding the Fourth Proportional to 57,929.76, 86,901.52 and 20,482.08

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Solution

The fourth proportional to 57,929.76, 86,901.52 and 20,482.08 is: 30,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,929.76 : 86,901.52 = 20,482.08 : x
  2. Step 2: Convert to fraction form
    57,929.76/86,901.52 = 20,482.08/x
  3. Step 3: Cross multiply
    57,929.76x = 86,901.52 × 20,482.08
  4. Step 4: Simplify right side
    57,929.76x = 1,779,923,884.76
  5. Step 5: Solve for x
    x = 1,779,923,884.76/57,929.76
  6. Step 6: Final answer
    x = 30,725.55

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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.