Home / 42,665.60-63,998.40-40,246.40

Finding the Fourth Proportional to 42,665.60, 63,998.40 and 40,246.40

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Solution

The fourth proportional to 42,665.60, 63,998.40 and 40,246.40 is: 60,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,665.60 : 63,998.40 = 40,246.40 : x
  2. Step 2: Convert to fraction form
    42,665.60/63,998.40 = 40,246.40/x
  3. Step 3: Cross multiply
    42,665.60x = 63,998.40 × 40,246.40
  4. Step 4: Simplify right side
    42,665.60x = 2,575,705,205.76
  5. Step 5: Solve for x
    x = 2,575,705,205.76/42,665.60
  6. Step 6: Final answer
    x = 60,369.60

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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.