Home / 105,417.07-145,476.70-57,669.39

Finding the Fourth Proportional to 105,417.07, 145,476.70 and 57,669.39

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Solution

The fourth proportional to 105,417.07, 145,476.70 and 57,669.39 is: 79,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,417.07 : 145,476.70 = 57,669.39 : x
  2. Step 2: Convert to fraction form
    105,417.07/145,476.70 = 57,669.39/x
  3. Step 3: Cross multiply
    105,417.07x = 145,476.70 × 57,669.39
  4. Step 4: Simplify right side
    105,417.07x = 8,389,552,548.21
  5. Step 5: Solve for x
    x = 8,389,552,548.21/105,417.07
  6. Step 6: Final answer
    x = 79,584.38

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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.