Home / 56,261.63-77,640.86-31,111.13

Finding the Fourth Proportional to 56,261.63, 77,640.86 and 31,111.13

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Solution

The fourth proportional to 56,261.63, 77,640.86 and 31,111.13 is: 42,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.63 : 77,640.86 = 31,111.13 : x
  2. Step 2: Convert to fraction form
    56,261.63/77,640.86 = 31,111.13/x
  3. Step 3: Cross multiply
    56,261.63x = 77,640.86 × 31,111.13
  4. Step 4: Simplify right side
    56,261.63x = 2,415,494,733.22
  5. Step 5: Solve for x
    x = 2,415,494,733.22/56,261.63
  6. Step 6: Final answer
    x = 42,933.25

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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.