Home / 51,246.81-70,720.70-28,585.21

Finding the Fourth Proportional to 51,246.81, 70,720.70 and 28,585.21

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Solution

The fourth proportional to 51,246.81, 70,720.70 and 28,585.21 is: 39,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,246.81 : 70,720.70 = 28,585.21 : x
  2. Step 2: Convert to fraction form
    51,246.81/70,720.70 = 28,585.21/x
  3. Step 3: Cross multiply
    51,246.81x = 70,720.70 × 28,585.21
  4. Step 4: Simplify right side
    51,246.81x = 2,021,566,193.22
  5. Step 5: Solve for x
    x = 2,021,566,193.22/51,246.81
  6. Step 6: Final answer
    x = 39,447.65

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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.