Home / 51,311.01-70,802.12-28,647.35

Finding the Fourth Proportional to 51,311.01, 70,802.12 and 28,647.35

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Solution

The fourth proportional to 51,311.01, 70,802.12 and 28,647.35 is: 39,529.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.01 : 70,802.12 = 28,647.35 : x
  2. Step 2: Convert to fraction form
    51,311.01/70,802.12 = 28,647.35/x
  3. Step 3: Cross multiply
    51,311.01x = 70,802.12 × 28,647.35
  4. Step 4: Simplify right side
    51,311.01x = 2,028,292,615.13
  5. Step 5: Solve for x
    x = 2,028,292,615.13/51,311.01
  6. Step 6: Final answer
    x = 39,529.38

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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.