Home / 76,065.16-104,969.03-42,070.98

Finding the Fourth Proportional to 76,065.16, 104,969.03 and 42,070.98

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Solution

The fourth proportional to 76,065.16, 104,969.03 and 42,070.98 is: 58,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,065.16 : 104,969.03 = 42,070.98 : x
  2. Step 2: Convert to fraction form
    76,065.16/104,969.03 = 42,070.98/x
  3. Step 3: Cross multiply
    76,065.16x = 104,969.03 × 42,070.98
  4. Step 4: Simplify right side
    76,065.16x = 4,416,149,961.75
  5. Step 5: Solve for x
    x = 4,416,149,961.75/76,065.16
  6. Step 6: Final answer
    x = 58,057.46

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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.