Home / 56,218.88-84,341.12-19,280.64

Finding the Fourth Proportional to 56,218.88, 84,341.12 and 19,280.64

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Solution

The fourth proportional to 56,218.88, 84,341.12 and 19,280.64 is: 28,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.88 : 84,341.12 = 19,280.64 : x
  2. Step 2: Convert to fraction form
    56,218.88/84,341.12 = 19,280.64/x
  3. Step 3: Cross multiply
    56,218.88x = 84,341.12 × 19,280.64
  4. Step 4: Simplify right side
    56,218.88x = 1,626,150,771.92
  5. Step 5: Solve for x
    x = 1,626,150,771.92/56,218.88
  6. Step 6: Final answer
    x = 28,925.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.