Home / 70,308.76-96,981.30-49,080.28

Finding the Fourth Proportional to 70,308.76, 96,981.30 and 49,080.28

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Solution

The fourth proportional to 70,308.76, 96,981.30 and 49,080.28 is: 67,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,308.76 : 96,981.30 = 49,080.28 : x
  2. Step 2: Convert to fraction form
    70,308.76/96,981.30 = 49,080.28/x
  3. Step 3: Cross multiply
    70,308.76x = 96,981.30 × 49,080.28
  4. Step 4: Simplify right side
    70,308.76x = 4,759,869,358.76
  5. Step 5: Solve for x
    x = 4,759,869,358.76/70,308.76
  6. Step 6: Final answer
    x = 67,699.52

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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.