Home / 52,428.90-72,352.49-28,555.77

Finding the Fourth Proportional to 52,428.90, 72,352.49 and 28,555.77

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Solution

The fourth proportional to 52,428.90, 72,352.49 and 28,555.77 is: 39,407.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,428.90 : 72,352.49 = 28,555.77 : x
  2. Step 2: Convert to fraction form
    52,428.90/72,352.49 = 28,555.77/x
  3. Step 3: Cross multiply
    52,428.90x = 72,352.49 × 28,555.77
  4. Step 4: Simplify right side
    52,428.90x = 2,066,081,063.37
  5. Step 5: Solve for x
    x = 2,066,081,063.37/52,428.90
  6. Step 6: Final answer
    x = 39,407.29

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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.