Home / 55,155.36-82,599.69-31,390.92

Finding the Fourth Proportional to 55,155.36, 82,599.69 and 31,390.92

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Solution

The fourth proportional to 55,155.36, 82,599.69 and 31,390.92 is: 47,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,155.36 : 82,599.69 = 31,390.92 : x
  2. Step 2: Convert to fraction form
    55,155.36/82,599.69 = 31,390.92/x
  3. Step 3: Cross multiply
    55,155.36x = 82,599.69 × 31,390.92
  4. Step 4: Simplify right side
    55,155.36x = 2,592,880,260.81
  5. Step 5: Solve for x
    x = 2,592,880,260.81/55,155.36
  6. Step 6: Final answer
    x = 47,010.49

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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.