Home / 74,798.10-103,255.74-64,548.36

Finding the Fourth Proportional to 74,798.10, 103,255.74 and 64,548.36

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Solution

The fourth proportional to 74,798.10, 103,255.74 and 64,548.36 is: 89,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,798.10 : 103,255.74 = 64,548.36 : x
  2. Step 2: Convert to fraction form
    74,798.10/103,255.74 = 64,548.36/x
  3. Step 3: Cross multiply
    74,798.10x = 103,255.74 × 64,548.36
  4. Step 4: Simplify right side
    74,798.10x = 6,664,988,677.59
  5. Step 5: Solve for x
    x = 6,664,988,677.59/74,798.10
  6. Step 6: Final answer
    x = 89,106.39

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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.