Home / 51,031.02-70,428.64-28,372.26

Finding the Fourth Proportional to 51,031.02, 70,428.64 and 28,372.26

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Solution

The fourth proportional to 51,031.02, 70,428.64 and 28,372.26 is: 39,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,031.02 : 70,428.64 = 28,372.26 : x
  2. Step 2: Convert to fraction form
    51,031.02/70,428.64 = 28,372.26/x
  3. Step 3: Cross multiply
    51,031.02x = 70,428.64 × 28,372.26
  4. Step 4: Simplify right side
    51,031.02x = 1,998,219,685.53
  5. Step 5: Solve for x
    x = 1,998,219,685.53/51,031.02
  6. Step 6: Final answer
    x = 39,156.96

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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.