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Finding the Fourth Proportional to 71,359.47, 107,030.70 and 18,773.06

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Solution

The fourth proportional to 71,359.47, 107,030.70 and 18,773.06 is: 28,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.47 : 107,030.70 = 18,773.06 : x
  2. Step 2: Convert to fraction form
    71,359.47/107,030.70 = 18,773.06/x
  3. Step 3: Cross multiply
    71,359.47x = 107,030.70 × 18,773.06
  4. Step 4: Simplify right side
    71,359.47x = 2,009,293,217.79
  5. Step 5: Solve for x
    x = 2,009,293,217.79/71,359.47
  6. Step 6: Final answer
    x = 28,157.35

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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.