Home / 40,905.40-61,415.70-25,353.40

Finding the Fourth Proportional to 40,905.40, 61,415.70 and 25,353.40

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Solution

The fourth proportional to 40,905.40, 61,415.70 and 25,353.40 is: 38,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905.40 : 61,415.70 = 25,353.40 : x
  2. Step 2: Convert to fraction form
    40,905.40/61,415.70 = 25,353.40/x
  3. Step 3: Cross multiply
    40,905.40x = 61,415.70 × 25,353.40
  4. Step 4: Simplify right side
    40,905.40x = 1,557,096,808.38
  5. Step 5: Solve for x
    x = 1,557,096,808.38/40,905.40
  6. Step 6: Final answer
    x = 38,065.80

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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.