Home / 76,875.57-106,090.43-45,045.81

Finding the Fourth Proportional to 76,875.57, 106,090.43 and 45,045.81

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Solution

The fourth proportional to 76,875.57, 106,090.43 and 45,045.81 is: 62,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,875.57 : 106,090.43 = 45,045.81 : x
  2. Step 2: Convert to fraction form
    76,875.57/106,090.43 = 45,045.81/x
  3. Step 3: Cross multiply
    76,875.57x = 106,090.43 × 45,045.81
  4. Step 4: Simplify right side
    76,875.57x = 4,778,929,127.37
  5. Step 5: Solve for x
    x = 4,778,929,127.37/76,875.57
  6. Step 6: Final answer
    x = 62,164.47

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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.