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Finding the Fourth Proportional to 82,705.60, 124,058.40 and 47,713.60

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Solution

The fourth proportional to 82,705.60, 124,058.40 and 47,713.60 is: 71,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,705.60 : 124,058.40 = 47,713.60 : x
  2. Step 2: Convert to fraction form
    82,705.60/124,058.40 = 47,713.60/x
  3. Step 3: Cross multiply
    82,705.60x = 124,058.40 × 47,713.60
  4. Step 4: Simplify right side
    82,705.60x = 5,919,272,874.24
  5. Step 5: Solve for x
    x = 5,919,272,874.24/82,705.60
  6. Step 6: Final answer
    x = 71,570.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.