Home / 51,308.30-76,787.40-42,997.70

Finding the Fourth Proportional to 51,308.30, 76,787.40 and 42,997.70

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Solution

The fourth proportional to 51,308.30, 76,787.40 and 42,997.70 is: 64,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,308.30 : 76,787.40 = 42,997.70 : x
  2. Step 2: Convert to fraction form
    51,308.30/76,787.40 = 42,997.70/x
  3. Step 3: Cross multiply
    51,308.30x = 76,787.40 × 42,997.70
  4. Step 4: Simplify right side
    51,308.30x = 3,301,681,588.98
  5. Step 5: Solve for x
    x = 3,301,681,588.98/51,308.30
  6. Step 6: Final answer
    x = 64,349.85

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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.