Home / 74,895.21-103,256.85-57,686.88

Finding the Fourth Proportional to 74,895.21, 103,256.85 and 57,686.88

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Solution

The fourth proportional to 74,895.21, 103,256.85 and 57,686.88 is: 79,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,895.21 : 103,256.85 = 57,686.88 : x
  2. Step 2: Convert to fraction form
    74,895.21/103,256.85 = 57,686.88/x
  3. Step 3: Cross multiply
    74,895.21x = 103,256.85 × 57,686.88
  4. Step 4: Simplify right side
    74,895.21x = 5,956,565,515.13
  5. Step 5: Solve for x
    x = 5,956,565,515.13/74,895.21
  6. Step 6: Final answer
    x = 79,532.00

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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.