Home / 57,013.40-78,676.80-31,862.84

Finding the Fourth Proportional to 57,013.40, 78,676.80 and 31,862.84

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Solution

The fourth proportional to 57,013.40, 78,676.80 and 31,862.84 is: 43,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,013.40 : 78,676.80 = 31,862.84 : x
  2. Step 2: Convert to fraction form
    57,013.40/78,676.80 = 31,862.84/x
  3. Step 3: Cross multiply
    57,013.40x = 78,676.80 × 31,862.84
  4. Step 4: Simplify right side
    57,013.40x = 2,506,866,290.11
  5. Step 5: Solve for x
    x = 2,506,866,290.11/57,013.40
  6. Step 6: Final answer
    x = 43,969.77

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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.