Home / 48,280.06-66,630.18-30,390.40

Finding the Fourth Proportional to 48,280.06, 66,630.18 and 30,390.40

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Solution

The fourth proportional to 48,280.06, 66,630.18 and 30,390.40 is: 41,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,280.06 : 66,630.18 = 30,390.40 : x
  2. Step 2: Convert to fraction form
    48,280.06/66,630.18 = 30,390.40/x
  3. Step 3: Cross multiply
    48,280.06x = 66,630.18 × 30,390.40
  4. Step 4: Simplify right side
    48,280.06x = 2,024,917,822.27
  5. Step 5: Solve for x
    x = 2,024,917,822.27/48,280.06
  6. Step 6: Final answer
    x = 41,941.08

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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.