Home / 71,341.20-107,011.80-47,840.40

Finding the Fourth Proportional to 71,341.20, 107,011.80 and 47,840.40

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Solution

The fourth proportional to 71,341.20, 107,011.80 and 47,840.40 is: 71,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,341.20 : 107,011.80 = 47,840.40 : x
  2. Step 2: Convert to fraction form
    71,341.20/107,011.80 = 47,840.40/x
  3. Step 3: Cross multiply
    71,341.20x = 107,011.80 × 47,840.40
  4. Step 4: Simplify right side
    71,341.20x = 5,119,487,316.72
  5. Step 5: Solve for x
    x = 5,119,487,316.72/71,341.20
  6. Step 6: Final answer
    x = 71,760.60

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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.