Home / 110,428.83-165,639.87-31,543.20

Finding the Fourth Proportional to 110,428.83, 165,639.87 and 31,543.20

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Solution

The fourth proportional to 110,428.83, 165,639.87 and 31,543.20 is: 47,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,428.83 : 165,639.87 = 31,543.20 : x
  2. Step 2: Convert to fraction form
    110,428.83/165,639.87 = 31,543.20/x
  3. Step 3: Cross multiply
    110,428.83x = 165,639.87 × 31,543.20
  4. Step 4: Simplify right side
    110,428.83x = 5,224,811,547.38
  5. Step 5: Solve for x
    x = 5,224,811,547.38/110,428.83
  6. Step 6: Final answer
    x = 47,313.84

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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.