Home / 75,093.40-103,640.58-42,828.08

Finding the Fourth Proportional to 75,093.40, 103,640.58 and 42,828.08

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Solution

The fourth proportional to 75,093.40, 103,640.58 and 42,828.08 is: 59,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,093.40 : 103,640.58 = 42,828.08 : x
  2. Step 2: Convert to fraction form
    75,093.40/103,640.58 = 42,828.08/x
  3. Step 3: Cross multiply
    75,093.40x = 103,640.58 × 42,828.08
  4. Step 4: Simplify right side
    75,093.40x = 4,438,727,051.49
  5. Step 5: Solve for x
    x = 4,438,727,051.49/75,093.40
  6. Step 6: Final answer
    x = 59,109.42

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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.