Home / 55,516.16-83,275.32-20,437.76

Finding the Fourth Proportional to 55,516.16, 83,275.32 and 20,437.76

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Solution

The fourth proportional to 55,516.16, 83,275.32 and 20,437.76 is: 30,657.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,516.16 : 83,275.32 = 20,437.76 : x
  2. Step 2: Convert to fraction form
    55,516.16/83,275.32 = 20,437.76/x
  3. Step 3: Cross multiply
    55,516.16x = 83,275.32 × 20,437.76
  4. Step 4: Simplify right side
    55,516.16x = 1,701,961,004.08
  5. Step 5: Solve for x
    x = 1,701,961,004.08/55,516.16
  6. Step 6: Final answer
    x = 30,657.04

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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.