Home / 187,780.48-281,671.20-47,539.12

Finding the Fourth Proportional to 187,780.48, 281,671.20 and 47,539.12

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Solution

The fourth proportional to 187,780.48, 281,671.20 and 47,539.12 is: 71,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,780.48 : 281,671.20 = 47,539.12 : x
  2. Step 2: Convert to fraction form
    187,780.48/281,671.20 = 47,539.12/x
  3. Step 3: Cross multiply
    187,780.48x = 281,671.20 × 47,539.12
  4. Step 4: Simplify right side
    187,780.48x = 13,390,400,977.34
  5. Step 5: Solve for x
    x = 13,390,400,977.34/187,780.48
  6. Step 6: Final answer
    x = 71,308.80

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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.