Home / 91,019.64-136,529.44-28,690.12

Finding the Fourth Proportional to 91,019.64, 136,529.44 and 28,690.12

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Solution

The fourth proportional to 91,019.64, 136,529.44 and 28,690.12 is: 43,035.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,019.64 : 136,529.44 = 28,690.12 : x
  2. Step 2: Convert to fraction form
    91,019.64/136,529.44 = 28,690.12/x
  3. Step 3: Cross multiply
    91,019.64x = 136,529.44 × 28,690.12
  4. Step 4: Simplify right side
    91,019.64x = 3,917,046,017.13
  5. Step 5: Solve for x
    x = 3,917,046,017.13/91,019.64
  6. Step 6: Final answer
    x = 43,035.17

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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.