Home / 61,937.35-85,509.01-40,778.13

Finding the Fourth Proportional to 61,937.35, 85,509.01 and 40,778.13

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Solution

The fourth proportional to 61,937.35, 85,509.01 and 40,778.13 is: 56,297.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937.35 : 85,509.01 = 40,778.13 : x
  2. Step 2: Convert to fraction form
    61,937.35/85,509.01 = 40,778.13/x
  3. Step 3: Cross multiply
    61,937.35x = 85,509.01 × 40,778.13
  4. Step 4: Simplify right side
    61,937.35x = 3,486,897,525.95
  5. Step 5: Solve for x
    x = 3,486,897,525.95/61,937.35
  6. Step 6: Final answer
    x = 56,297.17

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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.