Home / 87,813.63-121,182.80-47,527.70

Finding the Fourth Proportional to 87,813.63, 121,182.80 and 47,527.70

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Solution

The fourth proportional to 87,813.63, 121,182.80 and 47,527.70 is: 65,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,813.63 : 121,182.80 = 47,527.70 : x
  2. Step 2: Convert to fraction form
    87,813.63/121,182.80 = 47,527.70/x
  3. Step 3: Cross multiply
    87,813.63x = 121,182.80 × 47,527.70
  4. Step 4: Simplify right side
    87,813.63x = 5,759,538,920.01
  5. Step 5: Solve for x
    x = 5,759,538,920.01/87,813.63
  6. Step 6: Final answer
    x = 65,588.21

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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.