Home / 74,810.77-103,145.48-47,909.05

Finding the Fourth Proportional to 74,810.77, 103,145.48 and 47,909.05

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Solution

The fourth proportional to 74,810.77, 103,145.48 and 47,909.05 is: 66,054.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810.77 : 103,145.48 = 47,909.05 : x
  2. Step 2: Convert to fraction form
    74,810.77/103,145.48 = 47,909.05/x
  3. Step 3: Cross multiply
    74,810.77x = 103,145.48 × 47,909.05
  4. Step 4: Simplify right side
    74,810.77x = 4,941,601,958.59
  5. Step 5: Solve for x
    x = 4,941,601,958.59/74,810.77
  6. Step 6: Final answer
    x = 66,054.69

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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.