Home / 40,866.59-61,300.36-12,785.51

Finding the Fourth Proportional to 40,866.59, 61,300.36 and 12,785.51

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Solution

The fourth proportional to 40,866.59, 61,300.36 and 12,785.51 is: 19,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,866.59 : 61,300.36 = 12,785.51 : x
  2. Step 2: Convert to fraction form
    40,866.59/61,300.36 = 12,785.51/x
  3. Step 3: Cross multiply
    40,866.59x = 61,300.36 × 12,785.51
  4. Step 4: Simplify right side
    40,866.59x = 783,756,535.02
  5. Step 5: Solve for x
    x = 783,756,535.02/40,866.59
  6. Step 6: Final answer
    x = 19,178.42

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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.