Home / 56,079.72-77,370.86-31,878.23

Finding the Fourth Proportional to 56,079.72, 77,370.86 and 31,878.23

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Solution

The fourth proportional to 56,079.72, 77,370.86 and 31,878.23 is: 43,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,079.72 : 77,370.86 = 31,878.23 : x
  2. Step 2: Convert to fraction form
    56,079.72/77,370.86 = 31,878.23/x
  3. Step 3: Cross multiply
    56,079.72x = 77,370.86 × 31,878.23
  4. Step 4: Simplify right side
    56,079.72x = 2,466,445,524.13
  5. Step 5: Solve for x
    x = 2,466,445,524.13/56,079.72
  6. Step 6: Final answer
    x = 43,981.06

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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.