Home / 55,001.42-75,901.92-31,127.66

Finding the Fourth Proportional to 55,001.42, 75,901.92 and 31,127.66

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Solution

The fourth proportional to 55,001.42, 75,901.92 and 31,127.66 is: 42,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,001.42 : 75,901.92 = 31,127.66 : x
  2. Step 2: Convert to fraction form
    55,001.42/75,901.92 = 31,127.66/x
  3. Step 3: Cross multiply
    55,001.42x = 75,901.92 × 31,127.66
  4. Step 4: Simplify right side
    55,001.42x = 2,362,649,159.11
  5. Step 5: Solve for x
    x = 2,362,649,159.11/55,001.42
  6. Step 6: Final answer
    x = 42,956.15

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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.