Home / 72,289.17-99,759.04-40,458.07

Finding the Fourth Proportional to 72,289.17, 99,759.04 and 40,458.07

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Solution

The fourth proportional to 72,289.17, 99,759.04 and 40,458.07 is: 55,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,289.17 : 99,759.04 = 40,458.07 : x
  2. Step 2: Convert to fraction form
    72,289.17/99,759.04 = 40,458.07/x
  3. Step 3: Cross multiply
    72,289.17x = 99,759.04 × 40,458.07
  4. Step 4: Simplify right side
    72,289.17x = 4,036,058,223.45
  5. Step 5: Solve for x
    x = 4,036,058,223.45/72,289.17
  6. Step 6: Final answer
    x = 55,832.13

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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.