Home / 45,509.20-68,509.49-40,931.69

Finding the Fourth Proportional to 45,509.20, 68,509.49 and 40,931.69

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Solution

The fourth proportional to 45,509.20, 68,509.49 and 40,931.69 is: 61,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,509.20 : 68,509.49 = 40,931.69 : x
  2. Step 2: Convert to fraction form
    45,509.20/68,509.49 = 40,931.69/x
  3. Step 3: Cross multiply
    45,509.20x = 68,509.49 × 40,931.69
  4. Step 4: Simplify right side
    45,509.20x = 2,804,208,966.52
  5. Step 5: Solve for x
    x = 2,804,208,966.52/45,509.20
  6. Step 6: Final answer
    x = 61,618.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.