Home / 85,641.87-118,184.16-47,400.66

Finding the Fourth Proportional to 85,641.87, 118,184.16 and 47,400.66

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Solution

The fourth proportional to 85,641.87, 118,184.16 and 47,400.66 is: 65,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,641.87 : 118,184.16 = 47,400.66 : x
  2. Step 2: Convert to fraction form
    85,641.87/118,184.16 = 47,400.66/x
  3. Step 3: Cross multiply
    85,641.87x = 118,184.16 × 47,400.66
  4. Step 4: Simplify right side
    85,641.87x = 5,602,007,363.30
  5. Step 5: Solve for x
    x = 5,602,007,363.30/85,641.87
  6. Step 6: Final answer
    x = 65,412.01

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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.