Home / 85,875.39-118,509.94-47,633.70

Finding the Fourth Proportional to 85,875.39, 118,509.94 and 47,633.70

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Solution

The fourth proportional to 85,875.39, 118,509.94 and 47,633.70 is: 65,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,875.39 : 118,509.94 = 47,633.70 : x
  2. Step 2: Convert to fraction form
    85,875.39/118,509.94 = 47,633.70/x
  3. Step 3: Cross multiply
    85,875.39x = 118,509.94 × 47,633.70
  4. Step 4: Simplify right side
    85,875.39x = 5,645,066,544.11
  5. Step 5: Solve for x
    x = 5,645,066,544.11/85,875.39
  6. Step 6: Final answer
    x = 65,735.55

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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.