Home / 56,488.13-77,954.64-30,995.76

Finding the Fourth Proportional to 56,488.13, 77,954.64 and 30,995.76

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Solution

The fourth proportional to 56,488.13, 77,954.64 and 30,995.76 is: 42,774.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,488.13 : 77,954.64 = 30,995.76 : x
  2. Step 2: Convert to fraction form
    56,488.13/77,954.64 = 30,995.76/x
  3. Step 3: Cross multiply
    56,488.13x = 77,954.64 × 30,995.76
  4. Step 4: Simplify right side
    56,488.13x = 2,416,263,312.33
  5. Step 5: Solve for x
    x = 2,416,263,312.33/56,488.13
  6. Step 6: Final answer
    x = 42,774.71

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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.