Home / 70,138.48-96,790.60-38,307.28

Finding the Fourth Proportional to 70,138.48, 96,790.60 and 38,307.28

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Solution

The fourth proportional to 70,138.48, 96,790.60 and 38,307.28 is: 52,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,138.48 : 96,790.60 = 38,307.28 : x
  2. Step 2: Convert to fraction form
    70,138.48/96,790.60 = 38,307.28/x
  3. Step 3: Cross multiply
    70,138.48x = 96,790.60 × 38,307.28
  4. Step 4: Simplify right side
    70,138.48x = 3,707,784,615.57
  5. Step 5: Solve for x
    x = 3,707,784,615.57/70,138.48
  6. Step 6: Final answer
    x = 52,863.77

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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.