Home / 61,622.24-85,009.04-40,392.16

Finding the Fourth Proportional to 61,622.24, 85,009.04 and 40,392.16

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Solution

The fourth proportional to 61,622.24, 85,009.04 and 40,392.16 is: 55,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,622.24 : 85,009.04 = 40,392.16 : x
  2. Step 2: Convert to fraction form
    61,622.24/85,009.04 = 40,392.16/x
  3. Step 3: Cross multiply
    61,622.24x = 85,009.04 × 40,392.16
  4. Step 4: Simplify right side
    61,622.24x = 3,433,698,745.13
  5. Step 5: Solve for x
    x = 3,433,698,745.13/61,622.24
  6. Step 6: Final answer
    x = 55,721.75

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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.