Home / 96,880.40-145,319.64-57,409.08

Finding the Fourth Proportional to 96,880.40, 145,319.64 and 57,409.08

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Solution

The fourth proportional to 96,880.40, 145,319.64 and 57,409.08 is: 86,113.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,880.40 : 145,319.64 = 57,409.08 : x
  2. Step 2: Convert to fraction form
    96,880.40/145,319.64 = 57,409.08/x
  3. Step 3: Cross multiply
    96,880.40x = 145,319.64 × 57,409.08
  4. Step 4: Simplify right side
    96,880.40x = 8,342,666,838.33
  5. Step 5: Solve for x
    x = 8,342,666,838.33/96,880.40
  6. Step 6: Final answer
    x = 86,113.05

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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.