Home / 48,315.17-66,661.31-31,320.13

Finding the Fourth Proportional to 48,315.17, 66,661.31 and 31,320.13

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Solution

The fourth proportional to 48,315.17, 66,661.31 and 31,320.13 is: 43,212.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,315.17 : 66,661.31 = 31,320.13 : x
  2. Step 2: Convert to fraction form
    48,315.17/66,661.31 = 31,320.13/x
  3. Step 3: Cross multiply
    48,315.17x = 66,661.31 × 31,320.13
  4. Step 4: Simplify right side
    48,315.17x = 2,087,841,145.15
  5. Step 5: Solve for x
    x = 2,087,841,145.15/48,315.17
  6. Step 6: Final answer
    x = 43,212.95

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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.