Home / 42,347.64-63,905.75-40,935.99

Finding the Fourth Proportional to 42,347.64, 63,905.75 and 40,935.99

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Solution

The fourth proportional to 42,347.64, 63,905.75 and 40,935.99 is: 61,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,347.64 : 63,905.75 = 40,935.99 : x
  2. Step 2: Convert to fraction form
    42,347.64/63,905.75 = 40,935.99/x
  3. Step 3: Cross multiply
    42,347.64x = 63,905.75 × 40,935.99
  4. Step 4: Simplify right side
    42,347.64x = 2,616,045,142.94
  5. Step 5: Solve for x
    x = 2,616,045,142.94/42,347.64
  6. Step 6: Final answer
    x = 61,775.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.