Home / 70,128.04-96,778.40-38,296.68

Finding the Fourth Proportional to 70,128.04, 96,778.40 and 38,296.68

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Solution

The fourth proportional to 70,128.04, 96,778.40 and 38,296.68 is: 52,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,128.04 : 96,778.40 = 38,296.68 : x
  2. Step 2: Convert to fraction form
    70,128.04/96,778.40 = 38,296.68/x
  3. Step 3: Cross multiply
    70,128.04x = 96,778.40 × 38,296.68
  4. Step 4: Simplify right side
    70,128.04x = 3,706,291,415.71
  5. Step 5: Solve for x
    x = 3,706,291,415.71/70,128.04
  6. Step 6: Final answer
    x = 52,850.35

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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.