Home / 50,870.80-70,202.52-28,210.72

Finding the Fourth Proportional to 50,870.80, 70,202.52 and 28,210.72

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Solution

The fourth proportional to 50,870.80, 70,202.52 and 28,210.72 is: 38,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,870.80 : 70,202.52 = 28,210.72 : x
  2. Step 2: Convert to fraction form
    50,870.80/70,202.52 = 28,210.72/x
  3. Step 3: Cross multiply
    50,870.80x = 70,202.52 × 28,210.72
  4. Step 4: Simplify right side
    50,870.80x = 1,980,463,635.01
  5. Step 5: Solve for x
    x = 1,980,463,635.01/50,870.80
  6. Step 6: Final answer
    x = 38,931.25

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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.