Home / 49,897.20-74,865.60-20,317.20

Finding the Fourth Proportional to 49,897.20, 74,865.60 and 20,317.20

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Solution

The fourth proportional to 49,897.20, 74,865.60 and 20,317.20 is: 30,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,897.20 : 74,865.60 = 20,317.20 : x
  2. Step 2: Convert to fraction form
    49,897.20/74,865.60 = 20,317.20/x
  3. Step 3: Cross multiply
    49,897.20x = 74,865.60 × 20,317.20
  4. Step 4: Simplify right side
    49,897.20x = 1,521,059,368.32
  5. Step 5: Solve for x
    x = 1,521,059,368.32/49,897.20
  6. Step 6: Final answer
    x = 30,483.86

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1.5x scale

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.