Home / 91,442.48-126,210.35-55,644.01

Finding the Fourth Proportional to 91,442.48, 126,210.35 and 55,644.01

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Solution

The fourth proportional to 91,442.48, 126,210.35 and 55,644.01 is: 76,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,442.48 : 126,210.35 = 55,644.01 : x
  2. Step 2: Convert to fraction form
    91,442.48/126,210.35 = 55,644.01/x
  3. Step 3: Cross multiply
    91,442.48x = 126,210.35 × 55,644.01
  4. Step 4: Simplify right side
    91,442.48x = 7,022,849,801.09
  5. Step 5: Solve for x
    x = 7,022,849,801.09/91,442.48
  6. Step 6: Final answer
    x = 76,800.74

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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.