Home / 70,370.51-97,112.13-38,540.75

Finding the Fourth Proportional to 70,370.51, 97,112.13 and 38,540.75

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Solution

The fourth proportional to 70,370.51, 97,112.13 and 38,540.75 is: 53,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,370.51 : 97,112.13 = 38,540.75 : x
  2. Step 2: Convert to fraction form
    70,370.51/97,112.13 = 38,540.75/x
  3. Step 3: Cross multiply
    70,370.51x = 97,112.13 × 38,540.75
  4. Step 4: Simplify right side
    70,370.51x = 3,742,774,324.30
  5. Step 5: Solve for x
    x = 3,742,774,324.30/70,370.51
  6. Step 6: Final answer
    x = 53,186.69

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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.