Home / 91,371.09-126,075.81-51,085.17

Finding the Fourth Proportional to 91,371.09, 126,075.81 and 51,085.17

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Solution

The fourth proportional to 91,371.09, 126,075.81 and 51,085.17 is: 70,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,371.09 : 126,075.81 = 51,085.17 : x
  2. Step 2: Convert to fraction form
    91,371.09/126,075.81 = 51,085.17/x
  3. Step 3: Cross multiply
    91,371.09x = 126,075.81 × 51,085.17
  4. Step 4: Simplify right side
    91,371.09x = 6,440,604,186.74
  5. Step 5: Solve for x
    x = 6,440,604,186.74/91,371.09
  6. Step 6: Final answer
    x = 70,488.42

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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.