Home / 48,637.76-67,090.56-30,718.40

Finding the Fourth Proportional to 48,637.76, 67,090.56 and 30,718.40

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Solution

The fourth proportional to 48,637.76, 67,090.56 and 30,718.40 is: 42,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,637.76 : 67,090.56 = 30,718.40 : x
  2. Step 2: Convert to fraction form
    48,637.76/67,090.56 = 30,718.40/x
  3. Step 3: Cross multiply
    48,637.76x = 67,090.56 × 30,718.40
  4. Step 4: Simplify right side
    48,637.76x = 2,060,914,658.30
  5. Step 5: Solve for x
    x = 2,060,914,658.30/48,637.76
  6. Step 6: Final answer
    x = 42,372.73

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1.5x scale

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.