Home / 52,378.42-72,276.36-30,866.78

Finding the Fourth Proportional to 52,378.42, 72,276.36 and 30,866.78

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Solution

The fourth proportional to 52,378.42, 72,276.36 and 30,866.78 is: 42,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,378.42 : 72,276.36 = 30,866.78 : x
  2. Step 2: Convert to fraction form
    52,378.42/72,276.36 = 30,866.78/x
  3. Step 3: Cross multiply
    52,378.42x = 72,276.36 × 30,866.78
  4. Step 4: Simplify right side
    52,378.42x = 2,230,938,503.32
  5. Step 5: Solve for x
    x = 2,230,938,503.32/52,378.42
  6. Step 6: Final answer
    x = 42,592.70

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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.