Home / 93,782.88-129,421.80-51,345.36

Finding the Fourth Proportional to 93,782.88, 129,421.80 and 51,345.36

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Solution

The fourth proportional to 93,782.88, 129,421.80 and 51,345.36 is: 70,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,782.88 : 129,421.80 = 51,345.36 : x
  2. Step 2: Convert to fraction form
    93,782.88/129,421.80 = 51,345.36/x
  3. Step 3: Cross multiply
    93,782.88x = 129,421.80 × 51,345.36
  4. Step 4: Simplify right side
    93,782.88x = 6,645,208,912.85
  5. Step 5: Solve for x
    x = 6,645,208,912.85/93,782.88
  6. Step 6: Final answer
    x = 70,857.38

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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.