Home / 70,129.64-96,778.40-38,298.53

Finding the Fourth Proportional to 70,129.64, 96,778.40 and 38,298.53

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Solution

The fourth proportional to 70,129.64, 96,778.40 and 38,298.53 is: 52,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,129.64 : 96,778.40 = 38,298.53 : x
  2. Step 2: Convert to fraction form
    70,129.64/96,778.40 = 38,298.53/x
  3. Step 3: Cross multiply
    70,129.64x = 96,778.40 × 38,298.53
  4. Step 4: Simplify right side
    70,129.64x = 3,706,470,506.21
  5. Step 5: Solve for x
    x = 3,706,470,506.21/70,129.64
  6. Step 6: Final answer
    x = 52,851.70

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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.