Home / 93,782.08-140,643.96-31,438

Finding the Fourth Proportional to 93,782.08, 140,643.96 and 31,438

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Solution

The fourth proportional to 93,782.08, 140,643.96 and 31,438 is: 47,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,782.08 : 140,643.96 = 31,438 : x
  2. Step 2: Convert to fraction form
    93,782.08/140,643.96 = 31,438/x
  3. Step 3: Cross multiply
    93,782.08x = 140,643.96 × 31,438
  4. Step 4: Simplify right side
    93,782.08x = 4,421,564,814.48
  5. Step 5: Solve for x
    x = 4,421,564,814.48/93,782.08
  6. Step 6: Final answer
    x = 47,147.22

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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.