Home / 55,572.08-76,689.60-30,423.20

Finding the Fourth Proportional to 55,572.08, 76,689.60 and 30,423.20

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Solution

The fourth proportional to 55,572.08, 76,689.60 and 30,423.20 is: 41,984.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,572.08 : 76,689.60 = 30,423.20 : x
  2. Step 2: Convert to fraction form
    55,572.08/76,689.60 = 30,423.20/x
  3. Step 3: Cross multiply
    55,572.08x = 76,689.60 × 30,423.20
  4. Step 4: Simplify right side
    55,572.08x = 2,333,143,038.72
  5. Step 5: Solve for x
    x = 2,333,143,038.72/55,572.08
  6. Step 6: Final answer
    x = 41,984.09

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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.