Home / 53,739.12-74,154.07-31,074.67

Finding the Fourth Proportional to 53,739.12, 74,154.07 and 31,074.67

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Solution

The fourth proportional to 53,739.12, 74,154.07 and 31,074.67 is: 42,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,739.12 : 74,154.07 = 31,074.67 : x
  2. Step 2: Convert to fraction form
    53,739.12/74,154.07 = 31,074.67/x
  3. Step 3: Cross multiply
    53,739.12x = 74,154.07 × 31,074.67
  4. Step 4: Simplify right side
    53,739.12x = 2,304,313,254.41
  5. Step 5: Solve for x
    x = 2,304,313,254.41/53,739.12
  6. Step 6: Final answer
    x = 42,879.62

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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.