Home / 61,728.08-85,184.40-34,879.28

Finding the Fourth Proportional to 61,728.08, 85,184.40 and 34,879.28

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Solution

The fourth proportional to 61,728.08, 85,184.40 and 34,879.28 is: 48,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,728.08 : 85,184.40 = 34,879.28 : x
  2. Step 2: Convert to fraction form
    61,728.08/85,184.40 = 34,879.28/x
  3. Step 3: Cross multiply
    61,728.08x = 85,184.40 × 34,879.28
  4. Step 4: Simplify right side
    61,728.08x = 2,971,170,539.23
  5. Step 5: Solve for x
    x = 2,971,170,539.23/61,728.08
  6. Step 6: Final answer
    x = 48,133.21

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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.