Home / 48,428.16-72,218.47-47,985.28

Finding the Fourth Proportional to 48,428.16, 72,218.47 and 47,985.28

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Solution

The fourth proportional to 48,428.16, 72,218.47 and 47,985.28 is: 71,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.16 : 72,218.47 = 47,985.28 : x
  2. Step 2: Convert to fraction form
    48,428.16/72,218.47 = 47,985.28/x
  3. Step 3: Cross multiply
    48,428.16x = 72,218.47 × 47,985.28
  4. Step 4: Simplify right side
    48,428.16x = 3,465,423,504.12
  5. Step 5: Solve for x
    x = 3,465,423,504.12/48,428.16
  6. Step 6: Final answer
    x = 71,558.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.