Home / 58,400.40-87,628.30-30,305.50

Finding the Fourth Proportional to 58,400.40, 87,628.30 and 30,305.50

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Solution

The fourth proportional to 58,400.40, 87,628.30 and 30,305.50 is: 45,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,400.40 : 87,628.30 = 30,305.50 : x
  2. Step 2: Convert to fraction form
    58,400.40/87,628.30 = 30,305.50/x
  3. Step 3: Cross multiply
    58,400.40x = 87,628.30 × 30,305.50
  4. Step 4: Simplify right side
    58,400.40x = 2,655,619,445.65
  5. Step 5: Solve for x
    x = 2,655,619,445.65/58,400.40
  6. Step 6: Final answer
    x = 45,472.62

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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.