Home / 55,555.20-83,332.80-22,280.40

Finding the Fourth Proportional to 55,555.20, 83,332.80 and 22,280.40

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Solution

The fourth proportional to 55,555.20, 83,332.80 and 22,280.40 is: 33,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.20 : 83,332.80 = 22,280.40 : x
  2. Step 2: Convert to fraction form
    55,555.20/83,332.80 = 22,280.40/x
  3. Step 3: Cross multiply
    55,555.20x = 83,332.80 × 22,280.40
  4. Step 4: Simplify right side
    55,555.20x = 1,856,688,117.12
  5. Step 5: Solve for x
    x = 1,856,688,117.12/55,555.20
  6. Step 6: Final answer
    x = 33,420.60

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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.