Home / 57,036.81-78,708.54-31,541.52

Finding the Fourth Proportional to 57,036.81, 78,708.54 and 31,541.52

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Solution

The fourth proportional to 57,036.81, 78,708.54 and 31,541.52 is: 43,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.81 : 78,708.54 = 31,541.52 : x
  2. Step 2: Convert to fraction form
    57,036.81/78,708.54 = 31,541.52/x
  3. Step 3: Cross multiply
    57,036.81x = 78,708.54 × 31,541.52
  4. Step 4: Simplify right side
    57,036.81x = 2,482,586,988.58
  5. Step 5: Solve for x
    x = 2,482,586,988.58/57,036.81
  6. Step 6: Final answer
    x = 43,526.05

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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.