Home / 72,713.07-109,048.53-28,329.93

Finding the Fourth Proportional to 72,713.07, 109,048.53 and 28,329.93

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Solution

The fourth proportional to 72,713.07, 109,048.53 and 28,329.93 is: 42,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,713.07 : 109,048.53 = 28,329.93 : x
  2. Step 2: Convert to fraction form
    72,713.07/109,048.53 = 28,329.93/x
  3. Step 3: Cross multiply
    72,713.07x = 109,048.53 × 28,329.93
  4. Step 4: Simplify right side
    72,713.07x = 3,089,337,221.50
  5. Step 5: Solve for x
    x = 3,089,337,221.50/72,713.07
  6. Step 6: Final answer
    x = 42,486.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.