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Finding the Fourth Proportional to 60,603.60, 90,905.40 and 38,514.90

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Solution

The fourth proportional to 60,603.60, 90,905.40 and 38,514.90 is: 57,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,603.60 : 90,905.40 = 38,514.90 : x
  2. Step 2: Convert to fraction form
    60,603.60/90,905.40 = 38,514.90/x
  3. Step 3: Cross multiply
    60,603.60x = 90,905.40 × 38,514.90
  4. Step 4: Simplify right side
    60,603.60x = 3,501,212,390.46
  5. Step 5: Solve for x
    x = 3,501,212,390.46/60,603.60
  6. Step 6: Final answer
    x = 57,772.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.