Home / 65,701.17-90,667.70-37,406.85

Finding the Fourth Proportional to 65,701.17, 90,667.70 and 37,406.85

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Solution

The fourth proportional to 65,701.17, 90,667.70 and 37,406.85 is: 51,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.17 : 90,667.70 = 37,406.85 : x
  2. Step 2: Convert to fraction form
    65,701.17/90,667.70 = 37,406.85/x
  3. Step 3: Cross multiply
    65,701.17x = 90,667.70 × 37,406.85
  4. Step 4: Simplify right side
    65,701.17x = 3,391,593,053.75
  5. Step 5: Solve for x
    x = 3,391,593,053.75/65,701.17
  6. Step 6: Final answer
    x = 51,621.50

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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.