Home / 56,425.24-77,866.38-30,931.70

Finding the Fourth Proportional to 56,425.24, 77,866.38 and 30,931.70

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Solution

The fourth proportional to 56,425.24, 77,866.38 and 30,931.70 is: 42,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,425.24 : 77,866.38 = 30,931.70 : x
  2. Step 2: Convert to fraction form
    56,425.24/77,866.38 = 30,931.70/x
  3. Step 3: Cross multiply
    56,425.24x = 77,866.38 × 30,931.70
  4. Step 4: Simplify right side
    56,425.24x = 2,408,539,506.25
  5. Step 5: Solve for x
    x = 2,408,539,506.25/56,425.24
  6. Step 6: Final answer
    x = 42,685.50

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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.