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Finding the Fourth Proportional to 77,437.99, 106,862.37 and 43,443.64

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Solution

The fourth proportional to 77,437.99, 106,862.37 and 43,443.64 is: 59,951.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,437.99 : 106,862.37 = 43,443.64 : x
  2. Step 2: Convert to fraction form
    77,437.99/106,862.37 = 43,443.64/x
  3. Step 3: Cross multiply
    77,437.99x = 106,862.37 × 43,443.64
  4. Step 4: Simplify right side
    77,437.99x = 4,642,489,797.51
  5. Step 5: Solve for x
    x = 4,642,489,797.51/77,437.99
  6. Step 6: Final answer
    x = 59,951.07

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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.