Home / 84,860.31-117,094.20-49,043.40

Finding the Fourth Proportional to 84,860.31, 117,094.20 and 49,043.40

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Solution

The fourth proportional to 84,860.31, 117,094.20 and 49,043.40 is: 67,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,860.31 : 117,094.20 = 49,043.40 : x
  2. Step 2: Convert to fraction form
    84,860.31/117,094.20 = 49,043.40/x
  3. Step 3: Cross multiply
    84,860.31x = 117,094.20 × 49,043.40
  4. Step 4: Simplify right side
    84,860.31x = 5,742,697,688.28
  5. Step 5: Solve for x
    x = 5,742,697,688.28/84,860.31
  6. Step 6: Final answer
    x = 67,672.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.