Home / 42,045.80-58,027.30-31,416.98

Finding the Fourth Proportional to 42,045.80, 58,027.30 and 31,416.98

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Solution

The fourth proportional to 42,045.80, 58,027.30 and 31,416.98 is: 43,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,045.80 : 58,027.30 = 31,416.98 : x
  2. Step 2: Convert to fraction form
    42,045.80/58,027.30 = 31,416.98/x
  3. Step 3: Cross multiply
    42,045.80x = 58,027.30 × 31,416.98
  4. Step 4: Simplify right side
    42,045.80x = 1,823,042,154.88
  5. Step 5: Solve for x
    x = 1,823,042,154.88/42,045.80
  6. Step 6: Final answer
    x = 43,358.49

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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.