Home / 57,430.15-79,246.31-36,221.72

Finding the Fourth Proportional to 57,430.15, 79,246.31 and 36,221.72

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Solution

The fourth proportional to 57,430.15, 79,246.31 and 36,221.72 is: 49,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,430.15 : 79,246.31 = 36,221.72 : x
  2. Step 2: Convert to fraction form
    57,430.15/79,246.31 = 36,221.72/x
  3. Step 3: Cross multiply
    57,430.15x = 79,246.31 × 36,221.72
  4. Step 4: Simplify right side
    57,430.15x = 2,870,437,074.51
  5. Step 5: Solve for x
    x = 2,870,437,074.51/57,430.15
  6. Step 6: Final answer
    x = 49,981.36

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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.