Home / 87,436.24-120,655.80-51,624.40

Finding the Fourth Proportional to 87,436.24, 120,655.80 and 51,624.40

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Solution

The fourth proportional to 87,436.24, 120,655.80 and 51,624.40 is: 71,238.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436.24 : 120,655.80 = 51,624.40 : x
  2. Step 2: Convert to fraction form
    87,436.24/120,655.80 = 51,624.40/x
  3. Step 3: Cross multiply
    87,436.24x = 120,655.80 × 51,624.40
  4. Step 4: Simplify right side
    87,436.24x = 6,228,783,281.52
  5. Step 5: Solve for x
    x = 6,228,783,281.52/87,436.24
  6. Step 6: Final answer
    x = 71,238.00

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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.