Home / 70,947.76-97,904.96-38,681.68

Finding the Fourth Proportional to 70,947.76, 97,904.96 and 38,681.68

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Solution

The fourth proportional to 70,947.76, 97,904.96 and 38,681.68 is: 53,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,947.76 : 97,904.96 = 38,681.68 : x
  2. Step 2: Convert to fraction form
    70,947.76/97,904.96 = 38,681.68/x
  3. Step 3: Cross multiply
    70,947.76x = 97,904.96 × 38,681.68
  4. Step 4: Simplify right side
    70,947.76x = 3,787,128,333.13
  5. Step 5: Solve for x
    x = 3,787,128,333.13/70,947.76
  6. Step 6: Final answer
    x = 53,379.11

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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.