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Finding the Fourth Proportional to 77,502.36, 106,940.51 and 45,666.93

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Solution

The fourth proportional to 77,502.36, 106,940.51 and 45,666.93 is: 63,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,502.36 : 106,940.51 = 45,666.93 : x
  2. Step 2: Convert to fraction form
    77,502.36/106,940.51 = 45,666.93/x
  3. Step 3: Cross multiply
    77,502.36x = 106,940.51 × 45,666.93
  4. Step 4: Simplify right side
    77,502.36x = 4,883,644,784.33
  5. Step 5: Solve for x
    x = 4,883,644,784.33/77,502.36
  6. Step 6: Final answer
    x = 63,012.85

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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.