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Finding the Fourth Proportional to 73,899.19, 101,980.89 and 40,365.19

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Solution

The fourth proportional to 73,899.19, 101,980.89 and 40,365.19 is: 55,703.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,899.19 : 101,980.89 = 40,365.19 : x
  2. Step 2: Convert to fraction form
    73,899.19/101,980.89 = 40,365.19/x
  3. Step 3: Cross multiply
    73,899.19x = 101,980.89 × 40,365.19
  4. Step 4: Simplify right side
    73,899.19x = 4,116,477,746.27
  5. Step 5: Solve for x
    x = 4,116,477,746.27/73,899.19
  6. Step 6: Final answer
    x = 55,703.96

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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.