Home / 57,005.50-78,667.59-31,857.34

Finding the Fourth Proportional to 57,005.50, 78,667.59 and 31,857.34

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Solution

The fourth proportional to 57,005.50, 78,667.59 and 31,857.34 is: 43,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.50 : 78,667.59 = 31,857.34 : x
  2. Step 2: Convert to fraction form
    57,005.50/78,667.59 = 31,857.34/x
  3. Step 3: Cross multiply
    57,005.50x = 78,667.59 × 31,857.34
  4. Step 4: Simplify right side
    57,005.50x = 2,506,140,161.61
  5. Step 5: Solve for x
    x = 2,506,140,161.61/57,005.50
  6. Step 6: Final answer
    x = 43,963.13

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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.