Home / 85,739.80-118,320.90-47,501.83

Finding the Fourth Proportional to 85,739.80, 118,320.90 and 47,501.83

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Solution

The fourth proportional to 85,739.80, 118,320.90 and 47,501.83 is: 65,552.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.80 : 118,320.90 = 47,501.83 : x
  2. Step 2: Convert to fraction form
    85,739.80/118,320.90 = 47,501.83/x
  3. Step 3: Cross multiply
    85,739.80x = 118,320.90 × 47,501.83
  4. Step 4: Simplify right side
    85,739.80x = 5,620,459,277.25
  5. Step 5: Solve for x
    x = 5,620,459,277.25/85,739.80
  6. Step 6: Final answer
    x = 65,552.51

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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.