Home / 52,478.67-72,421.32-28,605.35

Finding the Fourth Proportional to 52,478.67, 72,421.32 and 28,605.35

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Solution

The fourth proportional to 52,478.67, 72,421.32 and 28,605.35 is: 39,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.67 : 72,421.32 = 28,605.35 : x
  2. Step 2: Convert to fraction form
    52,478.67/72,421.32 = 28,605.35/x
  3. Step 3: Cross multiply
    52,478.67x = 72,421.32 × 28,605.35
  4. Step 4: Simplify right side
    52,478.67x = 2,071,636,843.96
  5. Step 5: Solve for x
    x = 2,071,636,843.96/52,478.67
  6. Step 6: Final answer
    x = 39,475.79

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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.