Home / 77,370.21-106,075.55-75,970.53

Finding the Fourth Proportional to 77,370.21, 106,075.55 and 75,970.53

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Solution

The fourth proportional to 77,370.21, 106,075.55 and 75,970.53 is: 104,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,370.21 : 106,075.55 = 75,970.53 : x
  2. Step 2: Convert to fraction form
    77,370.21/106,075.55 = 75,970.53/x
  3. Step 3: Cross multiply
    77,370.21x = 106,075.55 × 75,970.53
  4. Step 4: Simplify right side
    77,370.21x = 8,058,615,943.47
  5. Step 5: Solve for x
    x = 8,058,615,943.47/77,370.21
  6. Step 6: Final answer
    x = 104,156.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.