Home / 90,925.02-136,406.16-38,334.60

Finding the Fourth Proportional to 90,925.02, 136,406.16 and 38,334.60

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Solution

The fourth proportional to 90,925.02, 136,406.16 and 38,334.60 is: 57,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,925.02 : 136,406.16 = 38,334.60 : x
  2. Step 2: Convert to fraction form
    90,925.02/136,406.16 = 38,334.60/x
  3. Step 3: Cross multiply
    90,925.02x = 136,406.16 × 38,334.60
  4. Step 4: Simplify right side
    90,925.02x = 5,229,075,581.14
  5. Step 5: Solve for x
    x = 5,229,075,581.14/90,925.02
  6. Step 6: Final answer
    x = 57,509.75

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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.