Home / 85,513.32-118,008.54-47,787.57

Finding the Fourth Proportional to 85,513.32, 118,008.54 and 47,787.57

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Solution

The fourth proportional to 85,513.32, 118,008.54 and 47,787.57 is: 65,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,513.32 : 118,008.54 = 47,787.57 : x
  2. Step 2: Convert to fraction form
    85,513.32/118,008.54 = 47,787.57/x
  3. Step 3: Cross multiply
    85,513.32x = 118,008.54 × 47,787.57
  4. Step 4: Simplify right side
    85,513.32x = 5,639,341,365.85
  5. Step 5: Solve for x
    x = 5,639,341,365.85/85,513.32
  6. Step 6: Final answer
    x = 65,946.94

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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.