Home / 56,885.75-78,501.78-31,392.35

Finding the Fourth Proportional to 56,885.75, 78,501.78 and 31,392.35

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Solution

The fourth proportional to 56,885.75, 78,501.78 and 31,392.35 is: 43,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,885.75 : 78,501.78 = 31,392.35 : x
  2. Step 2: Convert to fraction form
    56,885.75/78,501.78 = 31,392.35/x
  3. Step 3: Cross multiply
    56,885.75x = 78,501.78 × 31,392.35
  4. Step 4: Simplify right side
    56,885.75x = 2,464,354,960.87
  5. Step 5: Solve for x
    x = 2,464,354,960.87/56,885.75
  6. Step 6: Final answer
    x = 43,321.13

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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.