Home / 85,695.04-118,259.20-47,969.28

Finding the Fourth Proportional to 85,695.04, 118,259.20 and 47,969.28

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Solution

The fourth proportional to 85,695.04, 118,259.20 and 47,969.28 is: 66,197.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,695.04 : 118,259.20 = 47,969.28 : x
  2. Step 2: Convert to fraction form
    85,695.04/118,259.20 = 47,969.28/x
  3. Step 3: Cross multiply
    85,695.04x = 118,259.20 × 47,969.28
  4. Step 4: Simplify right side
    85,695.04x = 5,672,808,677.38
  5. Step 5: Solve for x
    x = 5,672,808,677.38/85,695.04
  6. Step 6: Final answer
    x = 66,197.63

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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.