Home / 86,080.10-118,749.56-57,413

Finding the Fourth Proportional to 86,080.10, 118,749.56 and 57,413

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Solution

The fourth proportional to 86,080.10, 118,749.56 and 57,413 is: 79,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,080.10 : 118,749.56 = 57,413 : x
  2. Step 2: Convert to fraction form
    86,080.10/118,749.56 = 57,413/x
  3. Step 3: Cross multiply
    86,080.10x = 118,749.56 × 57,413
  4. Step 4: Simplify right side
    86,080.10x = 6,817,768,488.28
  5. Step 5: Solve for x
    x = 6,817,768,488.28/86,080.10
  6. Step 6: Final answer
    x = 79,202.61

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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.