Home / 91,256.86-136,907.28-28,927.36

Finding the Fourth Proportional to 91,256.86, 136,907.28 and 28,927.36

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Solution

The fourth proportional to 91,256.86, 136,907.28 and 28,927.36 is: 43,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,256.86 : 136,907.28 = 28,927.36 : x
  2. Step 2: Convert to fraction form
    91,256.86/136,907.28 = 28,927.36/x
  3. Step 3: Cross multiply
    91,256.86x = 136,907.28 × 28,927.36
  4. Step 4: Simplify right side
    91,256.86x = 3,960,366,175.18
  5. Step 5: Solve for x
    x = 3,960,366,175.18/91,256.86
  6. Step 6: Final answer
    x = 43,398.01

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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.