Home / 42,457.05-63,625.22-31,275.81

Finding the Fourth Proportional to 42,457.05, 63,625.22 and 31,275.81

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Solution

The fourth proportional to 42,457.05, 63,625.22 and 31,275.81 is: 46,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,457.05 : 63,625.22 = 31,275.81 : x
  2. Step 2: Convert to fraction form
    42,457.05/63,625.22 = 31,275.81/x
  3. Step 3: Cross multiply
    42,457.05x = 63,625.22 × 31,275.81
  4. Step 4: Simplify right side
    42,457.05x = 1,989,930,135.55
  5. Step 5: Solve for x
    x = 1,989,930,135.55/42,457.05
  6. Step 6: Final answer
    x = 46,869.25

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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.