Home / 54,330.93-74,980.28-30,459.15

Finding the Fourth Proportional to 54,330.93, 74,980.28 and 30,459.15

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Solution

The fourth proportional to 54,330.93, 74,980.28 and 30,459.15 is: 42,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.93 : 74,980.28 = 30,459.15 : x
  2. Step 2: Convert to fraction form
    54,330.93/74,980.28 = 30,459.15/x
  3. Step 3: Cross multiply
    54,330.93x = 74,980.28 × 30,459.15
  4. Step 4: Simplify right side
    54,330.93x = 2,283,835,671.71
  5. Step 5: Solve for x
    x = 2,283,835,671.71/54,330.93
  6. Step 6: Final answer
    x = 42,035.64

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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.