Home / 56,881.08-78,496.74-31,387.05

Finding the Fourth Proportional to 56,881.08, 78,496.74 and 31,387.05

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Solution

The fourth proportional to 56,881.08, 78,496.74 and 31,387.05 is: 43,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,881.08 : 78,496.74 = 31,387.05 : x
  2. Step 2: Convert to fraction form
    56,881.08/78,496.74 = 31,387.05/x
  3. Step 3: Cross multiply
    56,881.08x = 78,496.74 × 31,387.05
  4. Step 4: Simplify right side
    56,881.08x = 2,463,781,103.22
  5. Step 5: Solve for x
    x = 2,463,781,103.22/56,881.08
  6. Step 6: Final answer
    x = 43,314.60

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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.