Home / 51,643.68-77,362.80-40,498.08

Finding the Fourth Proportional to 51,643.68, 77,362.80 and 40,498.08

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Solution

The fourth proportional to 51,643.68, 77,362.80 and 40,498.08 is: 60,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,643.68 : 77,362.80 = 40,498.08 : x
  2. Step 2: Convert to fraction form
    51,643.68/77,362.80 = 40,498.08/x
  3. Step 3: Cross multiply
    51,643.68x = 77,362.80 × 40,498.08
  4. Step 4: Simplify right side
    51,643.68x = 3,133,044,863.42
  5. Step 5: Solve for x
    x = 3,133,044,863.42/51,643.68
  6. Step 6: Final answer
    x = 60,666.57

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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.