Home / 53,729.92-74,141.64-31,065.40

Finding the Fourth Proportional to 53,729.92, 74,141.64 and 31,065.40

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Solution

The fourth proportional to 53,729.92, 74,141.64 and 31,065.40 is: 42,866.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,729.92 : 74,141.64 = 31,065.40 : x
  2. Step 2: Convert to fraction form
    53,729.92/74,141.64 = 31,065.40/x
  3. Step 3: Cross multiply
    53,729.92x = 74,141.64 × 31,065.40
  4. Step 4: Simplify right side
    53,729.92x = 2,303,239,703.26
  5. Step 5: Solve for x
    x = 2,303,239,703.26/53,729.92
  6. Step 6: Final answer
    x = 42,866.99

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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.