Home / 85,984.31-118,645.08-49,187.63

Finding the Fourth Proportional to 85,984.31, 118,645.08 and 49,187.63

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Solution

The fourth proportional to 85,984.31, 118,645.08 and 49,187.63 is: 67,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,984.31 : 118,645.08 = 49,187.63 : x
  2. Step 2: Convert to fraction form
    85,984.31/118,645.08 = 49,187.63/x
  3. Step 3: Cross multiply
    85,984.31x = 118,645.08 × 49,187.63
  4. Step 4: Simplify right side
    85,984.31x = 5,835,870,296.36
  5. Step 5: Solve for x
    x = 5,835,870,296.36/85,984.31
  6. Step 6: Final answer
    x = 67,871.34

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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.