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Finding the Fourth Proportional to 77,347.66, 106,733.25 and 42,893.38

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Solution

The fourth proportional to 77,347.66, 106,733.25 and 42,893.38 is: 59,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,347.66 : 106,733.25 = 42,893.38 : x
  2. Step 2: Convert to fraction form
    77,347.66/106,733.25 = 42,893.38/x
  3. Step 3: Cross multiply
    77,347.66x = 106,733.25 × 42,893.38
  4. Step 4: Simplify right side
    77,347.66x = 4,578,149,850.89
  5. Step 5: Solve for x
    x = 4,578,149,850.89/77,347.66
  6. Step 6: Final answer
    x = 59,189.25

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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.