Home / 51,390.02-70,916.73-28,729.06

Finding the Fourth Proportional to 51,390.02, 70,916.73 and 28,729.06

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Solution

The fourth proportional to 51,390.02, 70,916.73 and 28,729.06 is: 39,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,390.02 : 70,916.73 = 28,729.06 : x
  2. Step 2: Convert to fraction form
    51,390.02/70,916.73 = 28,729.06/x
  3. Step 3: Cross multiply
    51,390.02x = 70,916.73 × 28,729.06
  4. Step 4: Simplify right side
    51,390.02x = 2,037,370,991.17
  5. Step 5: Solve for x
    x = 2,037,370,991.17/51,390.02
  6. Step 6: Final answer
    x = 39,645.27

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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.