Home / 90,464.56-124,726.36-64,653.96

Finding the Fourth Proportional to 90,464.56, 124,726.36 and 64,653.96

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Solution

The fourth proportional to 90,464.56, 124,726.36 and 64,653.96 is: 89,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,464.56 : 124,726.36 = 64,653.96 : x
  2. Step 2: Convert to fraction form
    90,464.56/124,726.36 = 64,653.96/x
  3. Step 3: Cross multiply
    90,464.56x = 124,726.36 × 64,653.96
  4. Step 4: Simplify right side
    90,464.56x = 8,064,053,090.39
  5. Step 5: Solve for x
    x = 8,064,053,090.39/90,464.56
  6. Step 6: Final answer
    x = 89,140.47

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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.