Home / 70,947.20-97,918.80-42,668.48

Finding the Fourth Proportional to 70,947.20, 97,918.80 and 42,668.48

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Solution

The fourth proportional to 70,947.20, 97,918.80 and 42,668.48 is: 58,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.20 : 97,918.80 = 42,668.48 : x
  2. Step 2: Convert to fraction form
    70,947.20/97,918.80 = 42,668.48/x
  3. Step 3: Cross multiply
    70,947.20x = 97,918.80 × 42,668.48
  4. Step 4: Simplify right side
    70,947.20x = 4,178,046,359.42
  5. Step 5: Solve for x
    x = 4,178,046,359.42/70,947.20
  6. Step 6: Final answer
    x = 58,889.52

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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.