Home / 54,386.81-74,913.95-38,443.85

Finding the Fourth Proportional to 54,386.81, 74,913.95 and 38,443.85

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Solution

The fourth proportional to 54,386.81, 74,913.95 and 38,443.85 is: 52,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,386.81 : 74,913.95 = 38,443.85 : x
  2. Step 2: Convert to fraction form
    54,386.81/74,913.95 = 38,443.85/x
  3. Step 3: Cross multiply
    54,386.81x = 74,913.95 × 38,443.85
  4. Step 4: Simplify right side
    54,386.81x = 2,879,980,378.25
  5. Step 5: Solve for x
    x = 2,879,980,378.25/54,386.81
  6. Step 6: Final answer
    x = 52,953.66

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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.