Home / 75,918.60-113,875.20-34,365.60

Finding the Fourth Proportional to 75,918.60, 113,875.20 and 34,365.60

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Solution

The fourth proportional to 75,918.60, 113,875.20 and 34,365.60 is: 51,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,918.60 : 113,875.20 = 34,365.60 : x
  2. Step 2: Convert to fraction form
    75,918.60/113,875.20 = 34,365.60/x
  3. Step 3: Cross multiply
    75,918.60x = 113,875.20 × 34,365.60
  4. Step 4: Simplify right side
    75,918.60x = 3,913,389,573.12
  5. Step 5: Solve for x
    x = 3,913,389,573.12/75,918.60
  6. Step 6: Final answer
    x = 51,547.18

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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.