Home / 55,801.40-77,002.53-30,650.90

Finding the Fourth Proportional to 55,801.40, 77,002.53 and 30,650.90

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Solution

The fourth proportional to 55,801.40, 77,002.53 and 30,650.90 is: 42,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,801.40 : 77,002.53 = 30,650.90 : x
  2. Step 2: Convert to fraction form
    55,801.40/77,002.53 = 30,650.90/x
  3. Step 3: Cross multiply
    55,801.40x = 77,002.53 × 30,650.90
  4. Step 4: Simplify right side
    55,801.40x = 2,360,196,846.78
  5. Step 5: Solve for x
    x = 2,360,196,846.78/55,801.40
  6. Step 6: Final answer
    x = 42,296.37

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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.