Home / 72,159.73-99,580.79-40,329.16

Finding the Fourth Proportional to 72,159.73, 99,580.79 and 40,329.16

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Solution

The fourth proportional to 72,159.73, 99,580.79 and 40,329.16 is: 55,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,159.73 : 99,580.79 = 40,329.16 : x
  2. Step 2: Convert to fraction form
    72,159.73/99,580.79 = 40,329.16/x
  3. Step 3: Cross multiply
    72,159.73x = 99,580.79 × 40,329.16
  4. Step 4: Simplify right side
    72,159.73x = 4,016,009,464.71
  5. Step 5: Solve for x
    x = 4,016,009,464.71/72,159.73
  6. Step 6: Final answer
    x = 55,654.44

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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.