Home / 70,931.50-97,886.14-39,101.54

Finding the Fourth Proportional to 70,931.50, 97,886.14 and 39,101.54

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Solution

The fourth proportional to 70,931.50, 97,886.14 and 39,101.54 is: 53,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.50 : 97,886.14 = 39,101.54 : x
  2. Step 2: Convert to fraction form
    70,931.50/97,886.14 = 39,101.54/x
  3. Step 3: Cross multiply
    70,931.50x = 97,886.14 × 39,101.54
  4. Step 4: Simplify right side
    70,931.50x = 3,827,498,818.66
  5. Step 5: Solve for x
    x = 3,827,498,818.66/70,931.50
  6. Step 6: Final answer
    x = 53,960.49

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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.