Home / 51,231.25-70,699.67-28,875.25

Finding the Fourth Proportional to 51,231.25, 70,699.67 and 28,875.25

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Solution

The fourth proportional to 51,231.25, 70,699.67 and 28,875.25 is: 39,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,231.25 : 70,699.67 = 28,875.25 : x
  2. Step 2: Convert to fraction form
    51,231.25/70,699.67 = 28,875.25/x
  3. Step 3: Cross multiply
    51,231.25x = 70,699.67 × 28,875.25
  4. Step 4: Simplify right side
    51,231.25x = 2,041,470,646.17
  5. Step 5: Solve for x
    x = 2,041,470,646.17/51,231.25
  6. Step 6: Final answer
    x = 39,848.15

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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.