Home / 90,075.96-124,291.55-51,314.13

Finding the Fourth Proportional to 90,075.96, 124,291.55 and 51,314.13

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Solution

The fourth proportional to 90,075.96, 124,291.55 and 51,314.13 is: 70,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,075.96 : 124,291.55 = 51,314.13 : x
  2. Step 2: Convert to fraction form
    90,075.96/124,291.55 = 51,314.13/x
  3. Step 3: Cross multiply
    90,075.96x = 124,291.55 × 51,314.13
  4. Step 4: Simplify right side
    90,075.96x = 6,377,912,498.03
  5. Step 5: Solve for x
    x = 6,377,912,498.03/90,075.96
  6. Step 6: Final answer
    x = 70,805.93

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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.