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Finding the Fourth Proportional to 57,127.91, 85,690.95 and 15,574.91

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Solution

The fourth proportional to 57,127.91, 85,690.95 and 15,574.91 is: 23,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,127.91 : 85,690.95 = 15,574.91 : x
  2. Step 2: Convert to fraction form
    57,127.91/85,690.95 = 15,574.91/x
  3. Step 3: Cross multiply
    57,127.91x = 85,690.95 × 15,574.91
  4. Step 4: Simplify right side
    57,127.91x = 1,334,628,405.61
  5. Step 5: Solve for x
    x = 1,334,628,405.61/57,127.91
  6. Step 6: Final answer
    x = 23,362.11

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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.