Home / 113,583.20-170,392.80-38,710.40

Finding the Fourth Proportional to 113,583.20, 170,392.80 and 38,710.40

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Solution

The fourth proportional to 113,583.20, 170,392.80 and 38,710.40 is: 58,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,583.20 : 170,392.80 = 38,710.40 : x
  2. Step 2: Convert to fraction form
    113,583.20/170,392.80 = 38,710.40/x
  3. Step 3: Cross multiply
    113,583.20x = 170,392.80 × 38,710.40
  4. Step 4: Simplify right side
    113,583.20x = 6,595,973,445.12
  5. Step 5: Solve for x
    x = 6,595,973,445.12/113,583.20
  6. Step 6: Final answer
    x = 58,071.73

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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.