Home / 80,630.64-111,254.04-47,090.16

Finding the Fourth Proportional to 80,630.64, 111,254.04 and 47,090.16

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Solution

The fourth proportional to 80,630.64, 111,254.04 and 47,090.16 is: 64,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,630.64 : 111,254.04 = 47,090.16 : x
  2. Step 2: Convert to fraction form
    80,630.64/111,254.04 = 47,090.16/x
  3. Step 3: Cross multiply
    80,630.64x = 111,254.04 × 47,090.16
  4. Step 4: Simplify right side
    80,630.64x = 5,238,970,544.25
  5. Step 5: Solve for x
    x = 5,238,970,544.25/80,630.64
  6. Step 6: Final answer
    x = 64,974.93

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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.