Home / 71,265.22-98,330.61-42,970.30

Finding the Fourth Proportional to 71,265.22, 98,330.61 and 42,970.30

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Solution

The fourth proportional to 71,265.22, 98,330.61 and 42,970.30 is: 59,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.22 : 98,330.61 = 42,970.30 : x
  2. Step 2: Convert to fraction form
    71,265.22/98,330.61 = 42,970.30/x
  3. Step 3: Cross multiply
    71,265.22x = 98,330.61 × 42,970.30
  4. Step 4: Simplify right side
    71,265.22x = 4,225,295,810.88
  5. Step 5: Solve for x
    x = 4,225,295,810.88/71,265.22
  6. Step 6: Final answer
    x = 59,289.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.