Home / 51,623.12-71,280.04-39,667.60

Finding the Fourth Proportional to 51,623.12, 71,280.04 and 39,667.60

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Solution

The fourth proportional to 51,623.12, 71,280.04 and 39,667.60 is: 54,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,623.12 : 71,280.04 = 39,667.60 : x
  2. Step 2: Convert to fraction form
    51,623.12/71,280.04 = 39,667.60/x
  3. Step 3: Cross multiply
    51,623.12x = 71,280.04 × 39,667.60
  4. Step 4: Simplify right side
    51,623.12x = 2,827,508,114.70
  5. Step 5: Solve for x
    x = 2,827,508,114.70/51,623.12
  6. Step 6: Final answer
    x = 54,772.13

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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.