Home / 88,115.40-121,596-47,828.31

Finding the Fourth Proportional to 88,115.40, 121,596 and 47,828.31

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Solution

The fourth proportional to 88,115.40, 121,596 and 47,828.31 is: 66,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,115.40 : 121,596 = 47,828.31 : x
  2. Step 2: Convert to fraction form
    88,115.40/121,596 = 47,828.31/x
  3. Step 3: Cross multiply
    88,115.40x = 121,596 × 47,828.31
  4. Step 4: Simplify right side
    88,115.40x = 5,815,731,182.76
  5. Step 5: Solve for x
    x = 5,815,731,182.76/88,115.40
  6. Step 6: Final answer
    x = 66,001.30

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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.