Home / 85,720.52-118,293.54-47,995.40

Finding the Fourth Proportional to 85,720.52, 118,293.54 and 47,995.40

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Solution

The fourth proportional to 85,720.52, 118,293.54 and 47,995.40 is: 66,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,720.52 : 118,293.54 = 47,995.40 : x
  2. Step 2: Convert to fraction form
    85,720.52/118,293.54 = 47,995.40/x
  3. Step 3: Cross multiply
    85,720.52x = 118,293.54 × 47,995.40
  4. Step 4: Simplify right side
    85,720.52x = 5,677,545,769.72
  5. Step 5: Solve for x
    x = 5,677,545,769.72/85,720.52
  6. Step 6: Final answer
    x = 66,233.22

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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.