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Finding the Fourth Proportional to 97,019.88, 133,886.16 and 54,578.40

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Solution

The fourth proportional to 97,019.88, 133,886.16 and 54,578.40 is: 75,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,019.88 : 133,886.16 = 54,578.40 : x
  2. Step 2: Convert to fraction form
    97,019.88/133,886.16 = 54,578.40/x
  3. Step 3: Cross multiply
    97,019.88x = 133,886.16 × 54,578.40
  4. Step 4: Simplify right side
    97,019.88x = 7,307,292,394.94
  5. Step 5: Solve for x
    x = 7,307,292,394.94/97,019.88
  6. Step 6: Final answer
    x = 75,317.48

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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.