Home / 55,750.14-76,916.30-31,859.78

Finding the Fourth Proportional to 55,750.14, 76,916.30 and 31,859.78

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Solution

The fourth proportional to 55,750.14, 76,916.30 and 31,859.78 is: 43,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,750.14 : 76,916.30 = 31,859.78 : x
  2. Step 2: Convert to fraction form
    55,750.14/76,916.30 = 31,859.78/x
  3. Step 3: Cross multiply
    55,750.14x = 76,916.30 × 31,859.78
  4. Step 4: Simplify right side
    55,750.14x = 2,450,535,852.53
  5. Step 5: Solve for x
    x = 2,450,535,852.53/55,750.14
  6. Step 6: Final answer
    x = 43,955.69

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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.