Home / 55,341.76-76,378.08-30,815.04

Finding the Fourth Proportional to 55,341.76, 76,378.08 and 30,815.04

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Solution

The fourth proportional to 55,341.76, 76,378.08 and 30,815.04 is: 42,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,341.76 : 76,378.08 = 30,815.04 : x
  2. Step 2: Convert to fraction form
    55,341.76/76,378.08 = 30,815.04/x
  3. Step 3: Cross multiply
    55,341.76x = 76,378.08 × 30,815.04
  4. Step 4: Simplify right side
    55,341.76x = 2,353,593,590.32
  5. Step 5: Solve for x
    x = 2,353,593,590.32/55,341.76
  6. Step 6: Final answer
    x = 42,528.35

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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.