Home / 72,267.29-99,731.66-40,435.50

Finding the Fourth Proportional to 72,267.29, 99,731.66 and 40,435.50

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Solution

The fourth proportional to 72,267.29, 99,731.66 and 40,435.50 is: 55,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,267.29 : 99,731.66 = 40,435.50 : x
  2. Step 2: Convert to fraction form
    72,267.29/99,731.66 = 40,435.50/x
  3. Step 3: Cross multiply
    72,267.29x = 99,731.66 × 40,435.50
  4. Step 4: Simplify right side
    72,267.29x = 4,032,699,709.75
  5. Step 5: Solve for x
    x = 4,032,699,709.75/72,267.29
  6. Step 6: Final answer
    x = 55,802.56

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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.