Home / 97,661.35-134,772.01-55,220.05

Finding the Fourth Proportional to 97,661.35, 134,772.01 and 55,220.05

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Solution

The fourth proportional to 97,661.35, 134,772.01 and 55,220.05 is: 76,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,661.35 : 134,772.01 = 55,220.05 : x
  2. Step 2: Convert to fraction form
    97,661.35/134,772.01 = 55,220.05/x
  3. Step 3: Cross multiply
    97,661.35x = 134,772.01 × 55,220.05
  4. Step 4: Simplify right side
    97,661.35x = 7,442,117,130.80
  5. Step 5: Solve for x
    x = 7,442,117,130.80/97,661.35
  6. Step 6: Final answer
    x = 76,203.30

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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.