Home / 74,742.35-103,086.09-47,887.36

Finding the Fourth Proportional to 74,742.35, 103,086.09 and 47,887.36

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Solution

The fourth proportional to 74,742.35, 103,086.09 and 47,887.36 is: 66,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742.35 : 103,086.09 = 47,887.36 : x
  2. Step 2: Convert to fraction form
    74,742.35/103,086.09 = 47,887.36/x
  3. Step 3: Cross multiply
    74,742.35x = 103,086.09 × 47,887.36
  4. Step 4: Simplify right side
    74,742.35x = 4,936,520,445.11
  5. Step 5: Solve for x
    x = 4,936,520,445.11/74,742.35
  6. Step 6: Final answer
    x = 66,047.17

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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.