Home / 51,123.60-70,548.84-28,763.28

Finding the Fourth Proportional to 51,123.60, 70,548.84 and 28,763.28

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Solution

The fourth proportional to 51,123.60, 70,548.84 and 28,763.28 is: 39,692.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,123.60 : 70,548.84 = 28,763.28 : x
  2. Step 2: Convert to fraction form
    51,123.60/70,548.84 = 28,763.28/x
  3. Step 3: Cross multiply
    51,123.60x = 70,548.84 × 28,763.28
  4. Step 4: Simplify right side
    51,123.60x = 2,029,216,038.60
  5. Step 5: Solve for x
    x = 2,029,216,038.60/51,123.60
  6. Step 6: Final answer
    x = 39,692.35

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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.