Home / 52,637.39-72,638.40-28,764.21

Finding the Fourth Proportional to 52,637.39, 72,638.40 and 28,764.21

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Solution

The fourth proportional to 52,637.39, 72,638.40 and 28,764.21 is: 39,693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,637.39 : 72,638.40 = 28,764.21 : x
  2. Step 2: Convert to fraction form
    52,637.39/72,638.40 = 28,764.21/x
  3. Step 3: Cross multiply
    52,637.39x = 72,638.40 × 28,764.21
  4. Step 4: Simplify right side
    52,637.39x = 2,089,386,191.66
  5. Step 5: Solve for x
    x = 2,089,386,191.66/52,637.39
  6. Step 6: Final answer
    x = 39,693.96

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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.