Home / 76,200.75-105,160.77-45,985.55

Finding the Fourth Proportional to 76,200.75, 105,160.77 and 45,985.55

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Solution

The fourth proportional to 76,200.75, 105,160.77 and 45,985.55 is: 63,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,200.75 : 105,160.77 = 45,985.55 : x
  2. Step 2: Convert to fraction form
    76,200.75/105,160.77 = 45,985.55/x
  3. Step 3: Cross multiply
    76,200.75x = 105,160.77 × 45,985.55
  4. Step 4: Simplify right side
    76,200.75x = 4,835,875,321.07
  5. Step 5: Solve for x
    x = 4,835,875,321.07/76,200.75
  6. Step 6: Final answer
    x = 63,462.31

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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.