Home / 97,765.12-134,906.88-55,316.80

Finding the Fourth Proportional to 97,765.12, 134,906.88 and 55,316.80

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Solution

The fourth proportional to 97,765.12, 134,906.88 and 55,316.80 is: 76,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,765.12 : 134,906.88 = 55,316.80 : x
  2. Step 2: Convert to fraction form
    97,765.12/134,906.88 = 55,316.80/x
  3. Step 3: Cross multiply
    97,765.12x = 134,906.88 × 55,316.80
  4. Step 4: Simplify right side
    97,765.12x = 7,462,616,899.58
  5. Step 5: Solve for x
    x = 7,462,616,899.58/97,765.12
  6. Step 6: Final answer
    x = 76,332.10

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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.