Home / 66,018.12-91,080.63-45,598.83

Finding the Fourth Proportional to 66,018.12, 91,080.63 and 45,598.83

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Solution

The fourth proportional to 66,018.12, 91,080.63 and 45,598.83 is: 62,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.12 : 91,080.63 = 45,598.83 : x
  2. Step 2: Convert to fraction form
    66,018.12/91,080.63 = 45,598.83/x
  3. Step 3: Cross multiply
    66,018.12x = 91,080.63 × 45,598.83
  4. Step 4: Simplify right side
    66,018.12x = 4,153,170,163.66
  5. Step 5: Solve for x
    x = 4,153,170,163.66/66,018.12
  6. Step 6: Final answer
    x = 62,909.55

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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.