Home / 56,428.25-84,703.73-42,428.41

Finding the Fourth Proportional to 56,428.25, 84,703.73 and 42,428.41

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Solution

The fourth proportional to 56,428.25, 84,703.73 and 42,428.41 is: 63,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.25 : 84,703.73 = 42,428.41 : x
  2. Step 2: Convert to fraction form
    56,428.25/84,703.73 = 42,428.41/x
  3. Step 3: Cross multiply
    56,428.25x = 84,703.73 × 42,428.41
  4. Step 4: Simplify right side
    56,428.25x = 3,593,844,161.07
  5. Step 5: Solve for x
    x = 3,593,844,161.07/56,428.25
  6. Step 6: Final answer
    x = 63,688.75

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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.