Home / 85,646.49-118,189.14-47,406.11

Finding the Fourth Proportional to 85,646.49, 118,189.14 and 47,406.11

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Solution

The fourth proportional to 85,646.49, 118,189.14 and 47,406.11 is: 65,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,646.49 : 118,189.14 = 47,406.11 : x
  2. Step 2: Convert to fraction form
    85,646.49/118,189.14 = 47,406.11/x
  3. Step 3: Cross multiply
    85,646.49x = 118,189.14 × 47,406.11
  4. Step 4: Simplify right side
    85,646.49x = 5,602,887,371.65
  5. Step 5: Solve for x
    x = 5,602,887,371.65/85,646.49
  6. Step 6: Final answer
    x = 65,418.76

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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.