Home / 70,406.10-97,160.51-38,140.79

Finding the Fourth Proportional to 70,406.10, 97,160.51 and 38,140.79

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Solution

The fourth proportional to 70,406.10, 97,160.51 and 38,140.79 is: 52,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,406.10 : 97,160.51 = 38,140.79 : x
  2. Step 2: Convert to fraction form
    70,406.10/97,160.51 = 38,140.79/x
  3. Step 3: Cross multiply
    70,406.10x = 97,160.51 × 38,140.79
  4. Step 4: Simplify right side
    70,406.10x = 3,705,778,217.75
  5. Step 5: Solve for x
    x = 3,705,778,217.75/70,406.10
  6. Step 6: Final answer
    x = 52,634.33

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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.