Home / 66,459.07-91,686.49-42,599.71

Finding the Fourth Proportional to 66,459.07, 91,686.49 and 42,599.71

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Solution

The fourth proportional to 66,459.07, 91,686.49 and 42,599.71 is: 58,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,459.07 : 91,686.49 = 42,599.71 : x
  2. Step 2: Convert to fraction form
    66,459.07/91,686.49 = 42,599.71/x
  3. Step 3: Cross multiply
    66,459.07x = 91,686.49 × 42,599.71
  4. Step 4: Simplify right side
    66,459.07x = 3,905,817,884.92
  5. Step 5: Solve for x
    x = 3,905,817,884.92/66,459.07
  6. Step 6: Final answer
    x = 58,770.28

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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.