Home / 51,915.02-71,643.40-30,694.10

Finding the Fourth Proportional to 51,915.02, 71,643.40 and 30,694.10

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Solution

The fourth proportional to 51,915.02, 71,643.40 and 30,694.10 is: 42,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,915.02 : 71,643.40 = 30,694.10 : x
  2. Step 2: Convert to fraction form
    51,915.02/71,643.40 = 30,694.10/x
  3. Step 3: Cross multiply
    51,915.02x = 71,643.40 × 30,694.10
  4. Step 4: Simplify right side
    51,915.02x = 2,199,029,683.94
  5. Step 5: Solve for x
    x = 2,199,029,683.94/51,915.02
  6. Step 6: Final answer
    x = 42,358.26

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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.