Home / 77,748.36-116,599-21,574.84

Finding the Fourth Proportional to 77,748.36, 116,599 and 21,574.84

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Solution

The fourth proportional to 77,748.36, 116,599 and 21,574.84 is: 32,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,748.36 : 116,599 = 21,574.84 : x
  2. Step 2: Convert to fraction form
    77,748.36/116,599 = 21,574.84/x
  3. Step 3: Cross multiply
    77,748.36x = 116,599 × 21,574.84
  4. Step 4: Simplify right side
    77,748.36x = 2,515,604,769.16
  5. Step 5: Solve for x
    x = 2,515,604,769.16/77,748.36
  6. Step 6: Final answer
    x = 32,355.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.