Home / 56,021.27-77,308.97-30,870.77

Finding the Fourth Proportional to 56,021.27, 77,308.97 and 30,870.77

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Solution

The fourth proportional to 56,021.27, 77,308.97 and 30,870.77 is: 42,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,021.27 : 77,308.97 = 30,870.77 : x
  2. Step 2: Convert to fraction form
    56,021.27/77,308.97 = 30,870.77/x
  3. Step 3: Cross multiply
    56,021.27x = 77,308.97 × 30,870.77
  4. Step 4: Simplify right side
    56,021.27x = 2,386,586,890.91
  5. Step 5: Solve for x
    x = 2,386,586,890.91/56,021.27
  6. Step 6: Final answer
    x = 42,601.45

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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.