Home / 86,820.15-119,776.53-56,594.86

Finding the Fourth Proportional to 86,820.15, 119,776.53 and 56,594.86

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Solution

The fourth proportional to 86,820.15, 119,776.53 and 56,594.86 is: 78,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,820.15 : 119,776.53 = 56,594.86 : x
  2. Step 2: Convert to fraction form
    86,820.15/119,776.53 = 56,594.86/x
  3. Step 3: Cross multiply
    86,820.15x = 119,776.53 × 56,594.86
  4. Step 4: Simplify right side
    86,820.15x = 6,778,735,946.64
  5. Step 5: Solve for x
    x = 6,778,735,946.64/86,820.15
  6. Step 6: Final answer
    x = 78,077.91

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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.