Home / 76,938.49-106,192.82-45,117.64

Finding the Fourth Proportional to 76,938.49, 106,192.82 and 45,117.64

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Solution

The fourth proportional to 76,938.49, 106,192.82 and 45,117.64 is: 62,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,938.49 : 106,192.82 = 45,117.64 : x
  2. Step 2: Convert to fraction form
    76,938.49/106,192.82 = 45,117.64/x
  3. Step 3: Cross multiply
    76,938.49x = 106,192.82 × 45,117.64
  4. Step 4: Simplify right side
    76,938.49x = 4,791,169,071.55
  5. Step 5: Solve for x
    x = 4,791,169,071.55/76,938.49
  6. Step 6: Final answer
    x = 62,272.72

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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.