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Finding the Fourth Proportional to 94,536, 130,459.12 and 51,515.40

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Solution

The fourth proportional to 94,536, 130,459.12 and 51,515.40 is: 71,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,536 : 130,459.12 = 51,515.40 : x
  2. Step 2: Convert to fraction form
    94,536/130,459.12 = 51,515.40/x
  3. Step 3: Cross multiply
    94,536x = 130,459.12 × 51,515.40
  4. Step 4: Simplify right side
    94,536x = 6,720,653,750.45
  5. Step 5: Solve for x
    x = 6,720,653,750.45/94,536
  6. Step 6: Final answer
    x = 71,090.95

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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.