Home / 72,771.18-100,370.48-50,117.36

Finding the Fourth Proportional to 72,771.18, 100,370.48 and 50,117.36

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Solution

The fourth proportional to 72,771.18, 100,370.48 and 50,117.36 is: 69,124.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771.18 : 100,370.48 = 50,117.36 : x
  2. Step 2: Convert to fraction form
    72,771.18/100,370.48 = 50,117.36/x
  3. Step 3: Cross multiply
    72,771.18x = 100,370.48 × 50,117.36
  4. Step 4: Simplify right side
    72,771.18x = 5,030,303,479.53
  5. Step 5: Solve for x
    x = 5,030,303,479.53/72,771.18
  6. Step 6: Final answer
    x = 69,124.94

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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.