Home / 85,127.05-117,471.51-48,802.45

Finding the Fourth Proportional to 85,127.05, 117,471.51 and 48,802.45

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Solution

The fourth proportional to 85,127.05, 117,471.51 and 48,802.45 is: 67,345.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.05 : 117,471.51 = 48,802.45 : x
  2. Step 2: Convert to fraction form
    85,127.05/117,471.51 = 48,802.45/x
  3. Step 3: Cross multiply
    85,127.05x = 117,471.51 × 48,802.45
  4. Step 4: Simplify right side
    85,127.05x = 5,732,897,493.20
  5. Step 5: Solve for x
    x = 5,732,897,493.20/85,127.05
  6. Step 6: Final answer
    x = 67,345.19

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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.