Home / 76,962.39-106,207.06-42,971.40

Finding the Fourth Proportional to 76,962.39, 106,207.06 and 42,971.40

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Solution

The fourth proportional to 76,962.39, 106,207.06 and 42,971.40 is: 59,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.39 : 106,207.06 = 42,971.40 : x
  2. Step 2: Convert to fraction form
    76,962.39/106,207.06 = 42,971.40/x
  3. Step 3: Cross multiply
    76,962.39x = 106,207.06 × 42,971.40
  4. Step 4: Simplify right side
    76,962.39x = 4,563,866,058.08
  5. Step 5: Solve for x
    x = 4,563,866,058.08/76,962.39
  6. Step 6: Final answer
    x = 59,299.95

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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.