Home / 85,154.34-117,513.02-47,428.59

Finding the Fourth Proportional to 85,154.34, 117,513.02 and 47,428.59

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Solution

The fourth proportional to 85,154.34, 117,513.02 and 47,428.59 is: 65,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,154.34 : 117,513.02 = 47,428.59 : x
  2. Step 2: Convert to fraction form
    85,154.34/117,513.02 = 47,428.59/x
  3. Step 3: Cross multiply
    85,154.34x = 117,513.02 × 47,428.59
  4. Step 4: Simplify right side
    85,154.34x = 5,573,476,608.10
  5. Step 5: Solve for x
    x = 5,573,476,608.10/85,154.34
  6. Step 6: Final answer
    x = 65,451.47

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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.