Home / 47,905-66,109.58-27,763.36

Finding the Fourth Proportional to 47,905, 66,109.58 and 27,763.36

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Solution

The fourth proportional to 47,905, 66,109.58 and 27,763.36 is: 38,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905 : 66,109.58 = 27,763.36 : x
  2. Step 2: Convert to fraction form
    47,905/66,109.58 = 27,763.36/x
  3. Step 3: Cross multiply
    47,905x = 66,109.58 × 27,763.36
  4. Step 4: Simplify right side
    47,905x = 1,835,424,068.99
  5. Step 5: Solve for x
    x = 1,835,424,068.99/47,905
  6. Step 6: Final answer
    x = 38,313.83

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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.