Home / 55,702.89-76,810.55-42,122.25

Finding the Fourth Proportional to 55,702.89, 76,810.55 and 42,122.25

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Solution

The fourth proportional to 55,702.89, 76,810.55 and 42,122.25 is: 58,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,702.89 : 76,810.55 = 42,122.25 : x
  2. Step 2: Convert to fraction form
    55,702.89/76,810.55 = 42,122.25/x
  3. Step 3: Cross multiply
    55,702.89x = 76,810.55 × 42,122.25
  4. Step 4: Simplify right side
    55,702.89x = 3,235,432,979.13
  5. Step 5: Solve for x
    x = 3,235,432,979.13/55,702.89
  6. Step 6: Final answer
    x = 58,083.75

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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.