Home / 56,417.95-77,855.11-30,923.78

Finding the Fourth Proportional to 56,417.95, 77,855.11 and 30,923.78

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Solution

The fourth proportional to 56,417.95, 77,855.11 and 30,923.78 is: 42,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,417.95 : 77,855.11 = 30,923.78 : x
  2. Step 2: Convert to fraction form
    56,417.95/77,855.11 = 30,923.78/x
  3. Step 3: Cross multiply
    56,417.95x = 77,855.11 × 30,923.78
  4. Step 4: Simplify right side
    56,417.95x = 2,407,573,826.93
  5. Step 5: Solve for x
    x = 2,407,573,826.93/56,417.95
  6. Step 6: Final answer
    x = 42,673.90

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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.