Home / 56,603.97-78,114.29-31,112.69

Finding the Fourth Proportional to 56,603.97, 78,114.29 and 31,112.69

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Solution

The fourth proportional to 56,603.97, 78,114.29 and 31,112.69 is: 42,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.97 : 78,114.29 = 31,112.69 : x
  2. Step 2: Convert to fraction form
    56,603.97/78,114.29 = 31,112.69/x
  3. Step 3: Cross multiply
    56,603.97x = 78,114.29 × 31,112.69
  4. Step 4: Simplify right side
    56,603.97x = 2,430,345,806.84
  5. Step 5: Solve for x
    x = 2,430,345,806.84/56,603.97
  6. Step 6: Final answer
    x = 42,935.96

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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.