Home / 56,415.03-77,851.04-30,920.84

Finding the Fourth Proportional to 56,415.03, 77,851.04 and 30,920.84

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Solution

The fourth proportional to 56,415.03, 77,851.04 and 30,920.84 is: 42,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,415.03 : 77,851.04 = 30,920.84 : x
  2. Step 2: Convert to fraction form
    56,415.03/77,851.04 = 30,920.84/x
  3. Step 3: Cross multiply
    56,415.03x = 77,851.04 × 30,920.84
  4. Step 4: Simplify right side
    56,415.03x = 2,407,219,551.67
  5. Step 5: Solve for x
    x = 2,407,219,551.67/56,415.03
  6. Step 6: Final answer
    x = 42,669.83

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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.