Home / 78,582.19-108,445.77-48,384.93

Finding the Fourth Proportional to 78,582.19, 108,445.77 and 48,384.93

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Solution

The fourth proportional to 78,582.19, 108,445.77 and 48,384.93 is: 66,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,582.19 : 108,445.77 = 48,384.93 : x
  2. Step 2: Convert to fraction form
    78,582.19/108,445.77 = 48,384.93/x
  3. Step 3: Cross multiply
    78,582.19x = 108,445.77 × 48,384.93
  4. Step 4: Simplify right side
    78,582.19x = 5,247,140,990.25
  5. Step 5: Solve for x
    x = 5,247,140,990.25/78,582.19
  6. Step 6: Final answer
    x = 66,772.65

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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.