Home / 51,289.40-70,779.44-28,628.37

Finding the Fourth Proportional to 51,289.40, 70,779.44 and 28,628.37

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Solution

The fourth proportional to 51,289.40, 70,779.44 and 28,628.37 is: 39,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,289.40 : 70,779.44 = 28,628.37 : x
  2. Step 2: Convert to fraction form
    51,289.40/70,779.44 = 28,628.37/x
  3. Step 3: Cross multiply
    51,289.40x = 70,779.44 × 28,628.37
  4. Step 4: Simplify right side
    51,289.40x = 2,026,300,068.28
  5. Step 5: Solve for x
    x = 2,026,300,068.28/51,289.40
  6. Step 6: Final answer
    x = 39,507.19

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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.