Home / 91,416.47-126,153.98-51,130.20

Finding the Fourth Proportional to 91,416.47, 126,153.98 and 51,130.20

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Solution

The fourth proportional to 91,416.47, 126,153.98 and 51,130.20 is: 70,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,416.47 : 126,153.98 = 51,130.20 : x
  2. Step 2: Convert to fraction form
    91,416.47/126,153.98 = 51,130.20/x
  3. Step 3: Cross multiply
    91,416.47x = 126,153.98 × 51,130.20
  4. Step 4: Simplify right side
    91,416.47x = 6,450,277,972.55
  5. Step 5: Solve for x
    x = 6,450,277,972.55/91,416.47
  6. Step 6: Final answer
    x = 70,559.26

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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.