Home / 52,478.76-72,420.30-28,605.36

Finding the Fourth Proportional to 52,478.76, 72,420.30 and 28,605.36

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Solution

The fourth proportional to 52,478.76, 72,420.30 and 28,605.36 is: 39,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.76 : 72,420.30 = 28,605.36 : x
  2. Step 2: Convert to fraction form
    52,478.76/72,420.30 = 28,605.36/x
  3. Step 3: Cross multiply
    52,478.76x = 72,420.30 × 28,605.36
  4. Step 4: Simplify right side
    52,478.76x = 2,071,608,752.81
  5. Step 5: Solve for x
    x = 2,071,608,752.81/52,478.76
  6. Step 6: Final answer
    x = 39,475.18

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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.