Home / 56,461.68-77,915.16-31,313.52

Finding the Fourth Proportional to 56,461.68, 77,915.16 and 31,313.52

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Solution

The fourth proportional to 56,461.68, 77,915.16 and 31,313.52 is: 43,211.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.68 : 77,915.16 = 31,313.52 : x
  2. Step 2: Convert to fraction form
    56,461.68/77,915.16 = 31,313.52/x
  3. Step 3: Cross multiply
    56,461.68x = 77,915.16 × 31,313.52
  4. Step 4: Simplify right side
    56,461.68x = 2,439,797,920.96
  5. Step 5: Solve for x
    x = 2,439,797,920.96/56,461.68
  6. Step 6: Final answer
    x = 43,211.57

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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.