Home / 51,005.86-70,386.68-28,344.28

Finding the Fourth Proportional to 51,005.86, 70,386.68 and 28,344.28

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Solution

The fourth proportional to 51,005.86, 70,386.68 and 28,344.28 is: 39,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,005.86 : 70,386.68 = 28,344.28 : x
  2. Step 2: Convert to fraction form
    51,005.86/70,386.68 = 28,344.28/x
  3. Step 3: Cross multiply
    51,005.86x = 70,386.68 × 28,344.28
  4. Step 4: Simplify right side
    51,005.86x = 1,995,059,766.19
  5. Step 5: Solve for x
    x = 1,995,059,766.19/51,005.86
  6. Step 6: Final answer
    x = 39,114.32

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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.