Home / 70,071.10-96,698.28-39,855.76

Finding the Fourth Proportional to 70,071.10, 96,698.28 and 39,855.76

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Solution

The fourth proportional to 70,071.10, 96,698.28 and 39,855.76 is: 55,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,071.10 : 96,698.28 = 39,855.76 : x
  2. Step 2: Convert to fraction form
    70,071.10/96,698.28 = 39,855.76/x
  3. Step 3: Cross multiply
    70,071.10x = 96,698.28 × 39,855.76
  4. Step 4: Simplify right side
    70,071.10x = 3,853,983,440.09
  5. Step 5: Solve for x
    x = 3,853,983,440.09/70,071.10
  6. Step 6: Final answer
    x = 55,001.04

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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.