Home / 52,409.20-78,639.36-26,117.84

Finding the Fourth Proportional to 52,409.20, 78,639.36 and 26,117.84

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Solution

The fourth proportional to 52,409.20, 78,639.36 and 26,117.84 is: 39,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,409.20 : 78,639.36 = 26,117.84 : x
  2. Step 2: Convert to fraction form
    52,409.20/78,639.36 = 26,117.84/x
  3. Step 3: Cross multiply
    52,409.20x = 78,639.36 × 26,117.84
  4. Step 4: Simplify right side
    52,409.20x = 2,053,890,222.18
  5. Step 5: Solve for x
    x = 2,053,890,222.18/52,409.20
  6. Step 6: Final answer
    x = 39,189.50

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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.