Home / 74,588.64-102,970.40-57,554.61

Finding the Fourth Proportional to 74,588.64, 102,970.40 and 57,554.61

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Solution

The fourth proportional to 74,588.64, 102,970.40 and 57,554.61 is: 79,454.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,588.64 : 102,970.40 = 57,554.61 : x
  2. Step 2: Convert to fraction form
    74,588.64/102,970.40 = 57,554.61/x
  3. Step 3: Cross multiply
    74,588.64x = 102,970.40 × 57,554.61
  4. Step 4: Simplify right side
    74,588.64x = 5,926,421,213.54
  5. Step 5: Solve for x
    x = 5,926,421,213.54/74,588.64
  6. Step 6: Final answer
    x = 79,454.74

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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.