Home / 51,289.50-70,779.63-28,933.50

Finding the Fourth Proportional to 51,289.50, 70,779.63 and 28,933.50

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Solution

The fourth proportional to 51,289.50, 70,779.63 and 28,933.50 is: 39,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,289.50 : 70,779.63 = 28,933.50 : x
  2. Step 2: Convert to fraction form
    51,289.50/70,779.63 = 28,933.50/x
  3. Step 3: Cross multiply
    51,289.50x = 70,779.63 × 28,933.50
  4. Step 4: Simplify right side
    51,289.50x = 2,047,902,424.61
  5. Step 5: Solve for x
    x = 2,047,902,424.61/51,289.50
  6. Step 6: Final answer
    x = 39,928.30

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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.