Home / 72,077.28-99,466.32-40,246.08

Finding the Fourth Proportional to 72,077.28, 99,466.32 and 40,246.08

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Solution

The fourth proportional to 72,077.28, 99,466.32 and 40,246.08 is: 55,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,077.28 : 99,466.32 = 40,246.08 : x
  2. Step 2: Convert to fraction form
    72,077.28/99,466.32 = 40,246.08/x
  3. Step 3: Cross multiply
    72,077.28x = 99,466.32 × 40,246.08
  4. Step 4: Simplify right side
    72,077.28x = 4,003,129,472.03
  5. Step 5: Solve for x
    x = 4,003,129,472.03/72,077.28
  6. Step 6: Final answer
    x = 55,539.41

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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.