Home / 107,552.79-161,325.54-40,990.50

Finding the Fourth Proportional to 107,552.79, 161,325.54 and 40,990.50

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Solution

The fourth proportional to 107,552.79, 161,325.54 and 40,990.50 is: 61,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,552.79 : 161,325.54 = 40,990.50 : x
  2. Step 2: Convert to fraction form
    107,552.79/161,325.54 = 40,990.50/x
  3. Step 3: Cross multiply
    107,552.79x = 161,325.54 × 40,990.50
  4. Step 4: Simplify right side
    107,552.79x = 6,612,814,547.37
  5. Step 5: Solve for x
    x = 6,612,814,547.37/107,552.79
  6. Step 6: Final answer
    x = 61,484.36

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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.