Home / 56,426.15-77,868.87-30,934.91

Finding the Fourth Proportional to 56,426.15, 77,868.87 and 30,934.91

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Solution

The fourth proportional to 56,426.15, 77,868.87 and 30,934.91 is: 42,690.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.15 : 77,868.87 = 30,934.91 : x
  2. Step 2: Convert to fraction form
    56,426.15/77,868.87 = 30,934.91/x
  3. Step 3: Cross multiply
    56,426.15x = 77,868.87 × 30,934.91
  4. Step 4: Simplify right side
    56,426.15x = 2,408,866,485.25
  5. Step 5: Solve for x
    x = 2,408,866,485.25/56,426.15
  6. Step 6: Final answer
    x = 42,690.61

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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.