Home / 70,971.60-97,939.52-39,143.36

Finding the Fourth Proportional to 70,971.60, 97,939.52 and 39,143.36

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Solution

The fourth proportional to 70,971.60, 97,939.52 and 39,143.36 is: 54,017.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,971.60 : 97,939.52 = 39,143.36 : x
  2. Step 2: Convert to fraction form
    70,971.60/97,939.52 = 39,143.36/x
  3. Step 3: Cross multiply
    70,971.60x = 97,939.52 × 39,143.36
  4. Step 4: Simplify right side
    70,971.60x = 3,833,681,889.59
  5. Step 5: Solve for x
    x = 3,833,681,889.59/70,971.60
  6. Step 6: Final answer
    x = 54,017.13

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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.