Home / 48,219.77-72,341.21-20,124.20

Finding the Fourth Proportional to 48,219.77, 72,341.21 and 20,124.20

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Solution

The fourth proportional to 48,219.77, 72,341.21 and 20,124.20 is: 30,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,219.77 : 72,341.21 = 20,124.20 : x
  2. Step 2: Convert to fraction form
    48,219.77/72,341.21 = 20,124.20/x
  3. Step 3: Cross multiply
    48,219.77x = 72,341.21 × 20,124.20
  4. Step 4: Simplify right side
    48,219.77x = 1,455,808,978.28
  5. Step 5: Solve for x
    x = 1,455,808,978.28/48,219.77
  6. Step 6: Final answer
    x = 30,191.12

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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.