Home / 56,386.77-77,813.70-30,894.75

Finding the Fourth Proportional to 56,386.77, 77,813.70 and 30,894.75

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Solution

The fourth proportional to 56,386.77, 77,813.70 and 30,894.75 is: 42,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,386.77 : 77,813.70 = 30,894.75 : x
  2. Step 2: Convert to fraction form
    56,386.77/77,813.70 = 30,894.75/x
  3. Step 3: Cross multiply
    56,386.77x = 77,813.70 × 30,894.75
  4. Step 4: Simplify right side
    56,386.77x = 2,404,034,808.08
  5. Step 5: Solve for x
    x = 2,404,034,808.08/56,386.77
  6. Step 6: Final answer
    x = 42,634.73

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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.