Home / 61,070.16-91,618.32-18,949.34

Finding the Fourth Proportional to 61,070.16, 91,618.32 and 18,949.34

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Solution

The fourth proportional to 61,070.16, 91,618.32 and 18,949.34 is: 28,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,070.16 : 91,618.32 = 18,949.34 : x
  2. Step 2: Convert to fraction form
    61,070.16/91,618.32 = 18,949.34/x
  3. Step 3: Cross multiply
    61,070.16x = 91,618.32 × 18,949.34
  4. Step 4: Simplify right side
    61,070.16x = 1,736,106,695.91
  5. Step 5: Solve for x
    x = 1,736,106,695.91/61,070.16
  6. Step 6: Final answer
    x = 28,428.07

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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.