Home / 85,725.85-118,300.43-47,485.28

Finding the Fourth Proportional to 85,725.85, 118,300.43 and 47,485.28

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Solution

The fourth proportional to 85,725.85, 118,300.43 and 47,485.28 is: 65,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.85 : 118,300.43 = 47,485.28 : x
  2. Step 2: Convert to fraction form
    85,725.85/118,300.43 = 47,485.28/x
  3. Step 3: Cross multiply
    85,725.85x = 118,300.43 × 47,485.28
  4. Step 4: Simplify right side
    85,725.85x = 5,617,529,042.67
  5. Step 5: Solve for x
    x = 5,617,529,042.67/85,725.85
  6. Step 6: Final answer
    x = 65,529.00

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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.