Home / 51,256.80-76,885.20-47,320.20

Finding the Fourth Proportional to 51,256.80, 76,885.20 and 47,320.20

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Solution

The fourth proportional to 51,256.80, 76,885.20 and 47,320.20 is: 70,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,256.80 : 76,885.20 = 47,320.20 : x
  2. Step 2: Convert to fraction form
    51,256.80/76,885.20 = 47,320.20/x
  3. Step 3: Cross multiply
    51,256.80x = 76,885.20 × 47,320.20
  4. Step 4: Simplify right side
    51,256.80x = 3,638,223,041.04
  5. Step 5: Solve for x
    x = 3,638,223,041.04/51,256.80
  6. Step 6: Final answer
    x = 70,980.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.