Home / 51,019.98-70,409.96-28,359.35

Finding the Fourth Proportional to 51,019.98, 70,409.96 and 28,359.35

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Solution

The fourth proportional to 51,019.98, 70,409.96 and 28,359.35 is: 39,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.98 : 70,409.96 = 28,359.35 : x
  2. Step 2: Convert to fraction form
    51,019.98/70,409.96 = 28,359.35/x
  3. Step 3: Cross multiply
    51,019.98x = 70,409.96 × 28,359.35
  4. Step 4: Simplify right side
    51,019.98x = 1,996,780,699.13
  5. Step 5: Solve for x
    x = 1,996,780,699.13/51,019.98
  6. Step 6: Final answer
    x = 39,137.23

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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.