Home / 72,287.69-99,818.57-45,475.07

Finding the Fourth Proportional to 72,287.69, 99,818.57 and 45,475.07

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Solution

The fourth proportional to 72,287.69, 99,818.57 and 45,475.07 is: 62,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,287.69 : 99,818.57 = 45,475.07 : x
  2. Step 2: Convert to fraction form
    72,287.69/99,818.57 = 45,475.07/x
  3. Step 3: Cross multiply
    72,287.69x = 99,818.57 × 45,475.07
  4. Step 4: Simplify right side
    72,287.69x = 4,539,256,458.05
  5. Step 5: Solve for x
    x = 4,539,256,458.05/72,287.69
  6. Step 6: Final answer
    x = 62,794.32

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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.