Home / 87,069.30-130,428.93-45,428.82

Finding the Fourth Proportional to 87,069.30, 130,428.93 and 45,428.82

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Solution

The fourth proportional to 87,069.30, 130,428.93 and 45,428.82 is: 68,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,069.30 : 130,428.93 = 45,428.82 : x
  2. Step 2: Convert to fraction form
    87,069.30/130,428.93 = 45,428.82/x
  3. Step 3: Cross multiply
    87,069.30x = 130,428.93 × 45,428.82
  4. Step 4: Simplify right side
    87,069.30x = 5,925,232,383.76
  5. Step 5: Solve for x
    x = 5,925,232,383.76/87,069.30
  6. Step 6: Final answer
    x = 68,051.91

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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.