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Finding the Fourth Proportional to 85,804.77, 118,406.52 and 47,561.88

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Solution

The fourth proportional to 85,804.77, 118,406.52 and 47,561.88 is: 65,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,804.77 : 118,406.52 = 47,561.88 : x
  2. Step 2: Convert to fraction form
    85,804.77/118,406.52 = 47,561.88/x
  3. Step 3: Cross multiply
    85,804.77x = 118,406.52 × 47,561.88
  4. Step 4: Simplify right side
    85,804.77x = 5,631,636,695.46
  5. Step 5: Solve for x
    x = 5,631,636,695.46/85,804.77
  6. Step 6: Final answer
    x = 65,633.14

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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.