Home / 70,030.12-104,986.44-30,557.20

Finding the Fourth Proportional to 70,030.12, 104,986.44 and 30,557.20

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Solution

The fourth proportional to 70,030.12, 104,986.44 and 30,557.20 is: 45,810.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,030.12 : 104,986.44 = 30,557.20 : x
  2. Step 2: Convert to fraction form
    70,030.12/104,986.44 = 30,557.20/x
  3. Step 3: Cross multiply
    70,030.12x = 104,986.44 × 30,557.20
  4. Step 4: Simplify right side
    70,030.12x = 3,208,091,644.37
  5. Step 5: Solve for x
    x = 3,208,091,644.37/70,030.12
  6. Step 6: Final answer
    x = 45,810.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.