Home / 56,319.50-77,638.10-42,867.33

Finding the Fourth Proportional to 56,319.50, 77,638.10 and 42,867.33

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Solution

The fourth proportional to 56,319.50, 77,638.10 and 42,867.33 is: 59,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,319.50 : 77,638.10 = 42,867.33 : x
  2. Step 2: Convert to fraction form
    56,319.50/77,638.10 = 42,867.33/x
  3. Step 3: Cross multiply
    56,319.50x = 77,638.10 × 42,867.33
  4. Step 4: Simplify right side
    56,319.50x = 3,328,137,547.79
  5. Step 5: Solve for x
    x = 3,328,137,547.79/56,319.50
  6. Step 6: Final answer
    x = 59,093.87

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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.