Home / 92,643.51-138,931.22-31,836.53

Finding the Fourth Proportional to 92,643.51, 138,931.22 and 31,836.53

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Solution

The fourth proportional to 92,643.51, 138,931.22 and 31,836.53 is: 47,743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,643.51 : 138,931.22 = 31,836.53 : x
  2. Step 2: Convert to fraction form
    92,643.51/138,931.22 = 31,836.53/x
  3. Step 3: Cross multiply
    92,643.51x = 138,931.22 × 31,836.53
  4. Step 4: Simplify right side
    92,643.51x = 4,423,087,099.63
  5. Step 5: Solve for x
    x = 4,423,087,099.63/92,643.51
  6. Step 6: Final answer
    x = 47,743.09

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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.