Home / 70,729.10-97,604.20-38,898.02

Finding the Fourth Proportional to 70,729.10, 97,604.20 and 38,898.02

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Solution

The fourth proportional to 70,729.10, 97,604.20 and 38,898.02 is: 53,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,729.10 : 97,604.20 = 38,898.02 : x
  2. Step 2: Convert to fraction form
    70,729.10/97,604.20 = 38,898.02/x
  3. Step 3: Cross multiply
    70,729.10x = 97,604.20 × 38,898.02
  4. Step 4: Simplify right side
    70,729.10x = 3,796,609,441.17
  5. Step 5: Solve for x
    x = 3,796,609,441.17/70,729.10
  6. Step 6: Final answer
    x = 53,678.18

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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.