Home / 51,038.58-70,416.36-30,887.82

Finding the Fourth Proportional to 51,038.58, 70,416.36 and 30,887.82

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Solution

The fourth proportional to 51,038.58, 70,416.36 and 30,887.82 is: 42,614.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,038.58 : 70,416.36 = 30,887.82 : x
  2. Step 2: Convert to fraction form
    51,038.58/70,416.36 = 30,887.82/x
  3. Step 3: Cross multiply
    51,038.58x = 70,416.36 × 30,887.82
  4. Step 4: Simplify right side
    51,038.58x = 2,175,007,852.74
  5. Step 5: Solve for x
    x = 2,175,007,852.74/51,038.58
  6. Step 6: Final answer
    x = 42,614.98

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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.