Home / 74,455.12-102,852.66-67,728.88

Finding the Fourth Proportional to 74,455.12, 102,852.66 and 67,728.88

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Solution

The fourth proportional to 74,455.12, 102,852.66 and 67,728.88 is: 93,561.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,455.12 : 102,852.66 = 67,728.88 : x
  2. Step 2: Convert to fraction form
    74,455.12/102,852.66 = 67,728.88/x
  3. Step 3: Cross multiply
    74,455.12x = 102,852.66 × 67,728.88
  4. Step 4: Simplify right side
    74,455.12x = 6,966,095,466.82
  5. Step 5: Solve for x
    x = 6,966,095,466.82/74,455.12
  6. Step 6: Final answer
    x = 93,561.00

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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.