Home / 98,687.34-148,009.80-31,224.72

Finding the Fourth Proportional to 98,687.34, 148,009.80 and 31,224.72

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Solution

The fourth proportional to 98,687.34, 148,009.80 and 31,224.72 is: 46,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,687.34 : 148,009.80 = 31,224.72 : x
  2. Step 2: Convert to fraction form
    98,687.34/148,009.80 = 31,224.72/x
  3. Step 3: Cross multiply
    98,687.34x = 148,009.80 × 31,224.72
  4. Step 4: Simplify right side
    98,687.34x = 4,621,564,562.26
  5. Step 5: Solve for x
    x = 4,621,564,562.26/98,687.34
  6. Step 6: Final answer
    x = 46,830.37

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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.