Home / 53,120.81-79,689.87-15,684.67

Finding the Fourth Proportional to 53,120.81, 79,689.87 and 15,684.67

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Solution

The fourth proportional to 53,120.81, 79,689.87 and 15,684.67 is: 23,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.81 : 79,689.87 = 15,684.67 : x
  2. Step 2: Convert to fraction form
    53,120.81/79,689.87 = 15,684.67/x
  3. Step 3: Cross multiply
    53,120.81x = 79,689.87 × 15,684.67
  4. Step 4: Simplify right side
    53,120.81x = 1,249,909,313.29
  5. Step 5: Solve for x
    x = 1,249,909,313.29/53,120.81
  6. Step 6: Final answer
    x = 23,529.56

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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.