Home / 72,680.66-100,294.32-40,854.36

Finding the Fourth Proportional to 72,680.66, 100,294.32 and 40,854.36

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Solution

The fourth proportional to 72,680.66, 100,294.32 and 40,854.36 is: 56,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,680.66 : 100,294.32 = 40,854.36 : x
  2. Step 2: Convert to fraction form
    72,680.66/100,294.32 = 40,854.36/x
  3. Step 3: Cross multiply
    72,680.66x = 100,294.32 × 40,854.36
  4. Step 4: Simplify right side
    72,680.66x = 4,097,460,255.24
  5. Step 5: Solve for x
    x = 4,097,460,255.24/72,680.66
  6. Step 6: Final answer
    x = 56,376.21

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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.