Home / 93,421.20-140,131.80-31,091.70

Finding the Fourth Proportional to 93,421.20, 140,131.80 and 31,091.70

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Solution

The fourth proportional to 93,421.20, 140,131.80 and 31,091.70 is: 46,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,421.20 : 140,131.80 = 31,091.70 : x
  2. Step 2: Convert to fraction form
    93,421.20/140,131.80 = 31,091.70/x
  3. Step 3: Cross multiply
    93,421.20x = 140,131.80 × 31,091.70
  4. Step 4: Simplify right side
    93,421.20x = 4,356,935,886.06
  5. Step 5: Solve for x
    x = 4,356,935,886.06/93,421.20
  6. Step 6: Final answer
    x = 46,637.55

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1.5x scale

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.