Home / 85,780.09-118,373.12-47,541.25

Finding the Fourth Proportional to 85,780.09, 118,373.12 and 47,541.25

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Solution

The fourth proportional to 85,780.09, 118,373.12 and 47,541.25 is: 65,605.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,780.09 : 118,373.12 = 47,541.25 : x
  2. Step 2: Convert to fraction form
    85,780.09/118,373.12 = 47,541.25/x
  3. Step 3: Cross multiply
    85,780.09x = 118,373.12 × 47,541.25
  4. Step 4: Simplify right side
    85,780.09x = 5,627,606,091.20
  5. Step 5: Solve for x
    x = 5,627,606,091.20/85,780.09
  6. Step 6: Final answer
    x = 65,605.04

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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.