Home / 75,009.08-112,463.40-30,623.78

Finding the Fourth Proportional to 75,009.08, 112,463.40 and 30,623.78

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Solution

The fourth proportional to 75,009.08, 112,463.40 and 30,623.78 is: 45,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.08 : 112,463.40 = 30,623.78 : x
  2. Step 2: Convert to fraction form
    75,009.08/112,463.40 = 30,623.78/x
  3. Step 3: Cross multiply
    75,009.08x = 112,463.40 × 30,623.78
  4. Step 4: Simplify right side
    75,009.08x = 3,444,054,419.65
  5. Step 5: Solve for x
    x = 3,444,054,419.65/75,009.08
  6. Step 6: Final answer
    x = 45,915.17

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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.