Home / 51,699.54-77,403.24-42,155.28

Finding the Fourth Proportional to 51,699.54, 77,403.24 and 42,155.28

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Solution

The fourth proportional to 51,699.54, 77,403.24 and 42,155.28 is: 63,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,699.54 : 77,403.24 = 42,155.28 : x
  2. Step 2: Convert to fraction form
    51,699.54/77,403.24 = 42,155.28/x
  3. Step 3: Cross multiply
    51,699.54x = 77,403.24 × 42,155.28
  4. Step 4: Simplify right side
    51,699.54x = 3,262,955,255.11
  5. Step 5: Solve for x
    x = 3,262,955,255.11/51,699.54
  6. Step 6: Final answer
    x = 63,113.82

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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.