Home / 97,029.59-133,890-54,587.21

Finding the Fourth Proportional to 97,029.59, 133,890 and 54,587.21

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Solution

The fourth proportional to 97,029.59, 133,890 and 54,587.21 is: 75,324.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,029.59 : 133,890 = 54,587.21 : x
  2. Step 2: Convert to fraction form
    97,029.59/133,890 = 54,587.21/x
  3. Step 3: Cross multiply
    97,029.59x = 133,890 × 54,587.21
  4. Step 4: Simplify right side
    97,029.59x = 7,308,681,546.90
  5. Step 5: Solve for x
    x = 7,308,681,546.90/97,029.59
  6. Step 6: Final answer
    x = 75,324.25

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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.