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Finding the Fourth Proportional to 40,603.10, 60,904.65 and 19,867.10

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Solution

The fourth proportional to 40,603.10, 60,904.65 and 19,867.10 is: 29,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,603.10 : 60,904.65 = 19,867.10 : x
  2. Step 2: Convert to fraction form
    40,603.10/60,904.65 = 19,867.10/x
  3. Step 3: Cross multiply
    40,603.10x = 60,904.65 × 19,867.10
  4. Step 4: Simplify right side
    40,603.10x = 1,209,998,772.02
  5. Step 5: Solve for x
    x = 1,209,998,772.02/40,603.10
  6. Step 6: Final answer
    x = 29,800.65

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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.