Home / 51,077.64-70,489.80-28,416.72

Finding the Fourth Proportional to 51,077.64, 70,489.80 and 28,416.72

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Solution

The fourth proportional to 51,077.64, 70,489.80 and 28,416.72 is: 39,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,077.64 : 70,489.80 = 28,416.72 : x
  2. Step 2: Convert to fraction form
    51,077.64/70,489.80 = 28,416.72/x
  3. Step 3: Cross multiply
    51,077.64x = 70,489.80 × 28,416.72
  4. Step 4: Simplify right side
    51,077.64x = 2,003,088,909.46
  5. Step 5: Solve for x
    x = 2,003,088,909.46/51,077.64
  6. Step 6: Final answer
    x = 39,216.55

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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.