Home / 42,155.02-58,440.29-39,907.84

Finding the Fourth Proportional to 42,155.02, 58,440.29 and 39,907.84

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Solution

The fourth proportional to 42,155.02, 58,440.29 and 39,907.84 is: 55,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,155.02 : 58,440.29 = 39,907.84 : x
  2. Step 2: Convert to fraction form
    42,155.02/58,440.29 = 39,907.84/x
  3. Step 3: Cross multiply
    42,155.02x = 58,440.29 × 39,907.84
  4. Step 4: Simplify right side
    42,155.02x = 2,332,225,742.87
  5. Step 5: Solve for x
    x = 2,332,225,742.87/42,155.02
  6. Step 6: Final answer
    x = 55,324.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.