Home / 85,329.06-117,756.63-47,602.50

Finding the Fourth Proportional to 85,329.06, 117,756.63 and 47,602.50

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Solution

The fourth proportional to 85,329.06, 117,756.63 and 47,602.50 is: 65,692.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.06 : 117,756.63 = 47,602.50 : x
  2. Step 2: Convert to fraction form
    85,329.06/117,756.63 = 47,602.50/x
  3. Step 3: Cross multiply
    85,329.06x = 117,756.63 × 47,602.50
  4. Step 4: Simplify right side
    85,329.06x = 5,605,509,979.58
  5. Step 5: Solve for x
    x = 5,605,509,979.58/85,329.06
  6. Step 6: Final answer
    x = 65,692.86

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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.