Home / 91,011.87-136,579.31-31,848.05

Finding the Fourth Proportional to 91,011.87, 136,579.31 and 31,848.05

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Solution

The fourth proportional to 91,011.87, 136,579.31 and 31,848.05 is: 47,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,011.87 : 136,579.31 = 31,848.05 : x
  2. Step 2: Convert to fraction form
    91,011.87/136,579.31 = 31,848.05/x
  3. Step 3: Cross multiply
    91,011.87x = 136,579.31 × 31,848.05
  4. Step 4: Simplify right side
    91,011.87x = 4,349,783,851.71
  5. Step 5: Solve for x
    x = 4,349,783,851.71/91,011.87
  6. Step 6: Final answer
    x = 47,793.59

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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.