Home / 48,678.51-67,187.16-31,653.12

Finding the Fourth Proportional to 48,678.51, 67,187.16 and 31,653.12

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Solution

The fourth proportional to 48,678.51, 67,187.16 and 31,653.12 is: 43,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.51 : 67,187.16 = 31,653.12 : x
  2. Step 2: Convert to fraction form
    48,678.51/67,187.16 = 31,653.12/x
  3. Step 3: Cross multiply
    48,678.51x = 67,187.16 × 31,653.12
  4. Step 4: Simplify right side
    48,678.51x = 2,126,683,237.94
  5. Step 5: Solve for x
    x = 2,126,683,237.94/48,678.51
  6. Step 6: Final answer
    x = 43,688.34

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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.