Home / 85,731.59-118,367.36-53,515.26

Finding the Fourth Proportional to 85,731.59, 118,367.36 and 53,515.26

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Solution

The fourth proportional to 85,731.59, 118,367.36 and 53,515.26 is: 73,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.59 : 118,367.36 = 53,515.26 : x
  2. Step 2: Convert to fraction form
    85,731.59/118,367.36 = 53,515.26/x
  3. Step 3: Cross multiply
    85,731.59x = 118,367.36 × 53,515.26
  4. Step 4: Simplify right side
    85,731.59x = 6,334,460,045.91
  5. Step 5: Solve for x
    x = 6,334,460,045.91/85,731.59
  6. Step 6: Final answer
    x = 73,887.12

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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.