Home / 76,875.67-115,319.45-29,513.53

Finding the Fourth Proportional to 76,875.67, 115,319.45 and 29,513.53

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Solution

The fourth proportional to 76,875.67, 115,319.45 and 29,513.53 is: 44,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,875.67 : 115,319.45 = 29,513.53 : x
  2. Step 2: Convert to fraction form
    76,875.67/115,319.45 = 29,513.53/x
  3. Step 3: Cross multiply
    76,875.67x = 115,319.45 × 29,513.53
  4. Step 4: Simplify right side
    76,875.67x = 3,403,484,047.16
  5. Step 5: Solve for x
    x = 3,403,484,047.16/76,875.67
  6. Step 6: Final answer
    x = 44,272.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.