Home / 61,980.12-85,525.80-35,122.16

Finding the Fourth Proportional to 61,980.12, 85,525.80 and 35,122.16

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Solution

The fourth proportional to 61,980.12, 85,525.80 and 35,122.16 is: 48,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,980.12 : 85,525.80 = 35,122.16 : x
  2. Step 2: Convert to fraction form
    61,980.12/85,525.80 = 35,122.16/x
  3. Step 3: Cross multiply
    61,980.12x = 85,525.80 × 35,122.16
  4. Step 4: Simplify right side
    61,980.12x = 3,003,850,831.73
  5. Step 5: Solve for x
    x = 3,003,850,831.73/61,980.12
  6. Step 6: Final answer
    x = 48,464.75

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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.