Home / 97,840.80-135,019.98-55,400.04

Finding the Fourth Proportional to 97,840.80, 135,019.98 and 55,400.04

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Solution

The fourth proportional to 97,840.80, 135,019.98 and 55,400.04 is: 76,451.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,840.80 : 135,019.98 = 55,400.04 : x
  2. Step 2: Convert to fraction form
    97,840.80/135,019.98 = 55,400.04/x
  3. Step 3: Cross multiply
    97,840.80x = 135,019.98 × 55,400.04
  4. Step 4: Simplify right side
    97,840.80x = 7,480,112,292.80
  5. Step 5: Solve for x
    x = 7,480,112,292.80/97,840.80
  6. Step 6: Final answer
    x = 76,451.87

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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.