Home / 77,341.12-116,011.56-21,181.66

Finding the Fourth Proportional to 77,341.12, 116,011.56 and 21,181.66

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Solution

The fourth proportional to 77,341.12, 116,011.56 and 21,181.66 is: 31,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,341.12 : 116,011.56 = 21,181.66 : x
  2. Step 2: Convert to fraction form
    77,341.12/116,011.56 = 21,181.66/x
  3. Step 3: Cross multiply
    77,341.12x = 116,011.56 × 21,181.66
  4. Step 4: Simplify right side
    77,341.12x = 2,457,317,419.99
  5. Step 5: Solve for x
    x = 2,457,317,419.99/77,341.12
  6. Step 6: Final answer
    x = 31,772.46

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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.