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Finding the Fourth Proportional to 77,036.94, 106,316.01 and 43,045.65

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Solution

The fourth proportional to 77,036.94, 106,316.01 and 43,045.65 is: 59,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,036.94 : 106,316.01 = 43,045.65 : x
  2. Step 2: Convert to fraction form
    77,036.94/106,316.01 = 43,045.65/x
  3. Step 3: Cross multiply
    77,036.94x = 106,316.01 × 43,045.65
  4. Step 4: Simplify right side
    77,036.94x = 4,576,441,755.86
  5. Step 5: Solve for x
    x = 4,576,441,755.86/77,036.94
  6. Step 6: Final answer
    x = 59,405.81

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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.