Home / 93,438.72-140,159.52-31,109.28

Finding the Fourth Proportional to 93,438.72, 140,159.52 and 31,109.28

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Solution

The fourth proportional to 93,438.72, 140,159.52 and 31,109.28 is: 46,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,438.72 : 140,159.52 = 31,109.28 : x
  2. Step 2: Convert to fraction form
    93,438.72/140,159.52 = 31,109.28/x
  3. Step 3: Cross multiply
    93,438.72x = 140,159.52 × 31,109.28
  4. Step 4: Simplify right side
    93,438.72x = 4,360,261,752.35
  5. Step 5: Solve for x
    x = 4,360,261,752.35/93,438.72
  6. Step 6: Final answer
    x = 46,664.40

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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.