Home / 51,230.76-70,686.44-31,087.16

Finding the Fourth Proportional to 51,230.76, 70,686.44 and 31,087.16

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Solution

The fourth proportional to 51,230.76, 70,686.44 and 31,087.16 is: 42,892.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,230.76 : 70,686.44 = 31,087.16 : x
  2. Step 2: Convert to fraction form
    51,230.76/70,686.44 = 31,087.16/x
  3. Step 3: Cross multiply
    51,230.76x = 70,686.44 × 31,087.16
  4. Step 4: Simplify right side
    51,230.76x = 2,197,440,670.11
  5. Step 5: Solve for x
    x = 2,197,440,670.11/51,230.76
  6. Step 6: Final answer
    x = 42,892.99

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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.