Home / 58,182.03-87,281.10-20,731.05

Finding the Fourth Proportional to 58,182.03, 87,281.10 and 20,731.05

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Solution

The fourth proportional to 58,182.03, 87,281.10 and 20,731.05 is: 31,099.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,182.03 : 87,281.10 = 20,731.05 : x
  2. Step 2: Convert to fraction form
    58,182.03/87,281.10 = 20,731.05/x
  3. Step 3: Cross multiply
    58,182.03x = 87,281.10 × 20,731.05
  4. Step 4: Simplify right side
    58,182.03x = 1,809,428,848.16
  5. Step 5: Solve for x
    x = 1,809,428,848.16/58,182.03
  6. Step 6: Final answer
    x = 31,099.45

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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.