Home / 53,838.23-74,299.21-31,178.21

Finding the Fourth Proportional to 53,838.23, 74,299.21 and 31,178.21

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Solution

The fourth proportional to 53,838.23, 74,299.21 and 31,178.21 is: 43,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,838.23 : 74,299.21 = 31,178.21 : x
  2. Step 2: Convert to fraction form
    53,838.23/74,299.21 = 31,178.21/x
  3. Step 3: Cross multiply
    53,838.23x = 74,299.21 × 31,178.21
  4. Step 4: Simplify right side
    53,838.23x = 2,316,516,480.02
  5. Step 5: Solve for x
    x = 2,316,516,480.02/53,838.23
  6. Step 6: Final answer
    x = 43,027.35

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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.