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Finding the Fourth Proportional to 71,342.39, 98,362.95 and 45,803.63

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Solution

The fourth proportional to 71,342.39, 98,362.95 and 45,803.63 is: 63,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,342.39 : 98,362.95 = 45,803.63 : x
  2. Step 2: Convert to fraction form
    71,342.39/98,362.95 = 45,803.63/x
  3. Step 3: Cross multiply
    71,342.39x = 98,362.95 × 45,803.63
  4. Step 4: Simplify right side
    71,342.39x = 4,505,380,167.51
  5. Step 5: Solve for x
    x = 4,505,380,167.51/71,342.39
  6. Step 6: Final answer
    x = 63,151.52

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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.