Home / 74,840.80-112,260.24-21,534.08

Finding the Fourth Proportional to 74,840.80, 112,260.24 and 21,534.08

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Solution

The fourth proportional to 74,840.80, 112,260.24 and 21,534.08 is: 32,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,840.80 : 112,260.24 = 21,534.08 : x
  2. Step 2: Convert to fraction form
    74,840.80/112,260.24 = 21,534.08/x
  3. Step 3: Cross multiply
    74,840.80x = 112,260.24 × 21,534.08
  4. Step 4: Simplify right side
    74,840.80x = 2,417,420,988.98
  5. Step 5: Solve for x
    x = 2,417,420,988.98/74,840.80
  6. Step 6: Final answer
    x = 32,300.84

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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.