Home / 52,456.80-78,685.20-50,415.60

Finding the Fourth Proportional to 52,456.80, 78,685.20 and 50,415.60

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Solution

The fourth proportional to 52,456.80, 78,685.20 and 50,415.60 is: 75,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,456.80 : 78,685.20 = 50,415.60 : x
  2. Step 2: Convert to fraction form
    52,456.80/78,685.20 = 50,415.60/x
  3. Step 3: Cross multiply
    52,456.80x = 78,685.20 × 50,415.60
  4. Step 4: Simplify right side
    52,456.80x = 3,966,961,569.12
  5. Step 5: Solve for x
    x = 3,966,961,569.12/52,456.80
  6. Step 6: Final answer
    x = 75,623.40

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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.