Home / 98,391.58-147,609.30-31,830.24

Finding the Fourth Proportional to 98,391.58, 147,609.30 and 31,830.24

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Solution

The fourth proportional to 98,391.58, 147,609.30 and 31,830.24 is: 47,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,391.58 : 147,609.30 = 31,830.24 : x
  2. Step 2: Convert to fraction form
    98,391.58/147,609.30 = 31,830.24/x
  3. Step 3: Cross multiply
    98,391.58x = 147,609.30 × 31,830.24
  4. Step 4: Simplify right side
    98,391.58x = 4,698,439,445.23
  5. Step 5: Solve for x
    x = 4,698,439,445.23/98,391.58
  6. Step 6: Final answer
    x = 47,752.45

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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.