Home / 52,810.63-72,878.66-28,938.20

Finding the Fourth Proportional to 52,810.63, 72,878.66 and 28,938.20

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Solution

The fourth proportional to 52,810.63, 72,878.66 and 28,938.20 is: 39,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,810.63 : 72,878.66 = 28,938.20 : x
  2. Step 2: Convert to fraction form
    52,810.63/72,878.66 = 28,938.20/x
  3. Step 3: Cross multiply
    52,810.63x = 72,878.66 × 28,938.20
  4. Step 4: Simplify right side
    52,810.63x = 2,108,977,238.81
  5. Step 5: Solve for x
    x = 2,108,977,238.81/52,810.63
  6. Step 6: Final answer
    x = 39,934.71

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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.