Home / 76,876.07-106,091.12-45,046.31

Finding the Fourth Proportional to 76,876.07, 106,091.12 and 45,046.31

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Solution

The fourth proportional to 76,876.07, 106,091.12 and 45,046.31 is: 62,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,876.07 : 106,091.12 = 45,046.31 : x
  2. Step 2: Convert to fraction form
    76,876.07/106,091.12 = 45,046.31/x
  3. Step 3: Cross multiply
    76,876.07x = 106,091.12 × 45,046.31
  4. Step 4: Simplify right side
    76,876.07x = 4,779,013,479.77
  5. Step 5: Solve for x
    x = 4,779,013,479.77/76,876.07
  6. Step 6: Final answer
    x = 62,165.16

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1.5x scale

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.