Home / 76,868.13-106,088.73-45,047.28

Finding the Fourth Proportional to 76,868.13, 106,088.73 and 45,047.28

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Solution

The fourth proportional to 76,868.13, 106,088.73 and 45,047.28 is: 62,171.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,868.13 : 106,088.73 = 45,047.28 : x
  2. Step 2: Convert to fraction form
    76,868.13/106,088.73 = 45,047.28/x
  3. Step 3: Cross multiply
    76,868.13x = 106,088.73 × 45,047.28
  4. Step 4: Simplify right side
    76,868.13x = 4,779,008,725.15
  5. Step 5: Solve for x
    x = 4,779,008,725.15/76,868.13
  6. Step 6: Final answer
    x = 62,171.52

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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.