Home / 52,104.08-78,155.44-12,661.08

Finding the Fourth Proportional to 52,104.08, 78,155.44 and 12,661.08

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Solution

The fourth proportional to 52,104.08, 78,155.44 and 12,661.08 is: 18,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,104.08 : 78,155.44 = 12,661.08 : x
  2. Step 2: Convert to fraction form
    52,104.08/78,155.44 = 12,661.08/x
  3. Step 3: Cross multiply
    52,104.08x = 78,155.44 × 12,661.08
  4. Step 4: Simplify right side
    52,104.08x = 989,532,278.28
  5. Step 5: Solve for x
    x = 989,532,278.28/52,104.08
  6. Step 6: Final answer
    x = 18,991.45

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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.