Home / 76,875.07-106,089.74-45,045.31

Finding the Fourth Proportional to 76,875.07, 106,089.74 and 45,045.31

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Solution

The fourth proportional to 76,875.07, 106,089.74 and 45,045.31 is: 62,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,875.07 : 106,089.74 = 45,045.31 : x
  2. Step 2: Convert to fraction form
    76,875.07/106,089.74 = 45,045.31/x
  3. Step 3: Cross multiply
    76,875.07x = 106,089.74 × 45,045.31
  4. Step 4: Simplify right side
    76,875.07x = 4,778,845,226.12
  5. Step 5: Solve for x
    x = 4,778,845,226.12/76,875.07
  6. Step 6: Final answer
    x = 62,163.78

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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.