Home / 74,670.22-112,021.72-54,888.80

Finding the Fourth Proportional to 74,670.22, 112,021.72 and 54,888.80

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Solution

The fourth proportional to 74,670.22, 112,021.72 and 54,888.80 is: 82,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,670.22 : 112,021.72 = 54,888.80 : x
  2. Step 2: Convert to fraction form
    74,670.22/112,021.72 = 54,888.80/x
  3. Step 3: Cross multiply
    74,670.22x = 112,021.72 × 54,888.80
  4. Step 4: Simplify right side
    74,670.22x = 6,148,737,784.74
  5. Step 5: Solve for x
    x = 6,148,737,784.74/74,670.22
  6. Step 6: Final answer
    x = 82,345.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.