Home / 86,513.90-119,368.74-48,780.86

Finding the Fourth Proportional to 86,513.90, 119,368.74 and 48,780.86

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Solution

The fourth proportional to 86,513.90, 119,368.74 and 48,780.86 is: 67,306.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,513.90 : 119,368.74 = 48,780.86 : x
  2. Step 2: Convert to fraction form
    86,513.90/119,368.74 = 48,780.86/x
  3. Step 3: Cross multiply
    86,513.90x = 119,368.74 × 48,780.86
  4. Step 4: Simplify right side
    86,513.90x = 5,822,909,794.32
  5. Step 5: Solve for x
    x = 5,822,909,794.32/86,513.90
  6. Step 6: Final answer
    x = 67,306.06

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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.