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Finding the Fourth Proportional to 70,907.99, 97,852.64 and 38,642.58

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Solution

The fourth proportional to 70,907.99, 97,852.64 and 38,642.58 is: 53,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,907.99 : 97,852.64 = 38,642.58 : x
  2. Step 2: Convert to fraction form
    70,907.99/97,852.64 = 38,642.58/x
  3. Step 3: Cross multiply
    70,907.99x = 97,852.64 × 38,642.58
  4. Step 4: Simplify right side
    70,907.99x = 3,781,278,276.20
  5. Step 5: Solve for x
    x = 3,781,278,276.20/70,907.99
  6. Step 6: Final answer
    x = 53,326.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.