Home / 85,789.48-118,416.90-53,539.24

Finding the Fourth Proportional to 85,789.48, 118,416.90 and 53,539.24

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Solution

The fourth proportional to 85,789.48, 118,416.90 and 53,539.24 is: 73,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,789.48 : 118,416.90 = 53,539.24 : x
  2. Step 2: Convert to fraction form
    85,789.48/118,416.90 = 53,539.24/x
  3. Step 3: Cross multiply
    85,789.48x = 118,416.90 × 53,539.24
  4. Step 4: Simplify right side
    85,789.48x = 6,339,950,829.16
  5. Step 5: Solve for x
    x = 6,339,950,829.16/85,789.48
  6. Step 6: Final answer
    x = 73,901.26

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1.5x scale

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.