Home / 45,124.50-67,686.75-12,292.50

Finding the Fourth Proportional to 45,124.50, 67,686.75 and 12,292.50

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Solution

The fourth proportional to 45,124.50, 67,686.75 and 12,292.50 is: 18,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,124.50 : 67,686.75 = 12,292.50 : x
  2. Step 2: Convert to fraction form
    45,124.50/67,686.75 = 12,292.50/x
  3. Step 3: Cross multiply
    45,124.50x = 67,686.75 × 12,292.50
  4. Step 4: Simplify right side
    45,124.50x = 832,039,374.38
  5. Step 5: Solve for x
    x = 832,039,374.38/45,124.50
  6. Step 6: Final answer
    x = 18,438.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.