Home / 93,870.18-140,802.84-31,540.68

Finding the Fourth Proportional to 93,870.18, 140,802.84 and 31,540.68

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Solution

The fourth proportional to 93,870.18, 140,802.84 and 31,540.68 is: 47,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,870.18 : 140,802.84 = 31,540.68 : x
  2. Step 2: Convert to fraction form
    93,870.18/140,802.84 = 31,540.68/x
  3. Step 3: Cross multiply
    93,870.18x = 140,802.84 × 31,540.68
  4. Step 4: Simplify right side
    93,870.18x = 4,441,017,319.53
  5. Step 5: Solve for x
    x = 4,441,017,319.53/93,870.18
  6. Step 6: Final answer
    x = 47,310.20

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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.