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Finding the Fourth Proportional to 55,885.60, 77,122.08 and 30,735.10

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Solution

The fourth proportional to 55,885.60, 77,122.08 and 30,735.10 is: 42,414.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,885.60 : 77,122.08 = 30,735.10 : x
  2. Step 2: Convert to fraction form
    55,885.60/77,122.08 = 30,735.10/x
  3. Step 3: Cross multiply
    55,885.60x = 77,122.08 × 30,735.10
  4. Step 4: Simplify right side
    55,885.60x = 2,370,354,648.20
  5. Step 5: Solve for x
    x = 2,370,354,648.20/55,885.60
  6. Step 6: Final answer
    x = 42,414.41

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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.