Home / 90,681.75-125,130.88-52,435.53

Finding the Fourth Proportional to 90,681.75, 125,130.88 and 52,435.53

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Solution

The fourth proportional to 90,681.75, 125,130.88 and 52,435.53 is: 72,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,681.75 : 125,130.88 = 52,435.53 : x
  2. Step 2: Convert to fraction form
    90,681.75/125,130.88 = 52,435.53/x
  3. Step 3: Cross multiply
    90,681.75x = 125,130.88 × 52,435.53
  4. Step 4: Simplify right side
    90,681.75x = 6,561,303,430.83
  5. Step 5: Solve for x
    x = 6,561,303,430.83/90,681.75
  6. Step 6: Final answer
    x = 72,355.28

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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.