Home / 57,169.95-78,855.16-40,210.17

Finding the Fourth Proportional to 57,169.95, 78,855.16 and 40,210.17

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Solution

The fourth proportional to 57,169.95, 78,855.16 and 40,210.17 is: 55,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,169.95 : 78,855.16 = 40,210.17 : x
  2. Step 2: Convert to fraction form
    57,169.95/78,855.16 = 40,210.17/x
  3. Step 3: Cross multiply
    57,169.95x = 78,855.16 × 40,210.17
  4. Step 4: Simplify right side
    57,169.95x = 3,170,779,388.98
  5. Step 5: Solve for x
    x = 3,170,779,388.98/57,169.95
  6. Step 6: Final answer
    x = 55,462.34

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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.