Home / 54,501-75,210.72-30,631.74

Finding the Fourth Proportional to 54,501, 75,210.72 and 30,631.74

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Solution

The fourth proportional to 54,501, 75,210.72 and 30,631.74 is: 42,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,501 : 75,210.72 = 30,631.74 : x
  2. Step 2: Convert to fraction form
    54,501/75,210.72 = 30,631.74/x
  3. Step 3: Cross multiply
    54,501x = 75,210.72 × 30,631.74
  4. Step 4: Simplify right side
    54,501x = 2,303,835,220.25
  5. Step 5: Solve for x
    x = 2,303,835,220.25/54,501
  6. Step 6: Final answer
    x = 42,271.43

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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.