Home / 56,457-84,968.73-42,489.36

Finding the Fourth Proportional to 56,457, 84,968.73 and 42,489.36

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Solution

The fourth proportional to 56,457, 84,968.73 and 42,489.36 is: 63,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,457 : 84,968.73 = 42,489.36 : x
  2. Step 2: Convert to fraction form
    56,457/84,968.73 = 42,489.36/x
  3. Step 3: Cross multiply
    56,457x = 84,968.73 × 42,489.36
  4. Step 4: Simplify right side
    56,457x = 3,610,266,957.71
  5. Step 5: Solve for x
    x = 3,610,266,957.71/56,457
  6. Step 6: Final answer
    x = 63,947.20

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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.