Home / 91,247.07-136,875.47-28,922.43

Finding the Fourth Proportional to 91,247.07, 136,875.47 and 28,922.43

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Solution

The fourth proportional to 91,247.07, 136,875.47 and 28,922.43 is: 43,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,247.07 : 136,875.47 = 28,922.43 : x
  2. Step 2: Convert to fraction form
    91,247.07/136,875.47 = 28,922.43/x
  3. Step 3: Cross multiply
    91,247.07x = 136,875.47 × 28,922.43
  4. Step 4: Simplify right side
    91,247.07x = 3,958,771,055.18
  5. Step 5: Solve for x
    x = 3,958,771,055.18/91,247.07
  6. Step 6: Final answer
    x = 43,385.19

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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.