Home / 42,639.51-58,771.98-39,065.90

Finding the Fourth Proportional to 42,639.51, 58,771.98 and 39,065.90

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Solution

The fourth proportional to 42,639.51, 58,771.98 and 39,065.90 is: 53,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.51 : 58,771.98 = 39,065.90 : x
  2. Step 2: Convert to fraction form
    42,639.51/58,771.98 = 39,065.90/x
  3. Step 3: Cross multiply
    42,639.51x = 58,771.98 × 39,065.90
  4. Step 4: Simplify right side
    42,639.51x = 2,295,979,999.62
  5. Step 5: Solve for x
    x = 2,295,979,999.62/42,639.51
  6. Step 6: Final answer
    x = 53,846.30

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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.