Home / 42,773.60-64,117.20-19,416.80

Finding the Fourth Proportional to 42,773.60, 64,117.20 and 19,416.80

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Solution

The fourth proportional to 42,773.60, 64,117.20 and 19,416.80 is: 29,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,773.60 : 64,117.20 = 19,416.80 : x
  2. Step 2: Convert to fraction form
    42,773.60/64,117.20 = 19,416.80/x
  3. Step 3: Cross multiply
    42,773.60x = 64,117.20 × 19,416.80
  4. Step 4: Simplify right side
    42,773.60x = 1,244,950,848.96
  5. Step 5: Solve for x
    x = 1,244,950,848.96/42,773.60
  6. Step 6: Final answer
    x = 29,105.59

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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.