Home / 85,866.48-118,501.68-48,143.04

Finding the Fourth Proportional to 85,866.48, 118,501.68 and 48,143.04

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Solution

The fourth proportional to 85,866.48, 118,501.68 and 48,143.04 is: 66,440.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,866.48 : 118,501.68 = 48,143.04 : x
  2. Step 2: Convert to fraction form
    85,866.48/118,501.68 = 48,143.04/x
  3. Step 3: Cross multiply
    85,866.48x = 118,501.68 × 48,143.04
  4. Step 4: Simplify right side
    85,866.48x = 5,705,031,120.31
  5. Step 5: Solve for x
    x = 5,705,031,120.31/85,866.48
  6. Step 6: Final answer
    x = 66,440.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.