Home / 76,130.16-105,089.85-51,606.60

Finding the Fourth Proportional to 76,130.16, 105,089.85 and 51,606.60

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Solution

The fourth proportional to 76,130.16, 105,089.85 and 51,606.60 is: 71,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,130.16 : 105,089.85 = 51,606.60 : x
  2. Step 2: Convert to fraction form
    76,130.16/105,089.85 = 51,606.60/x
  3. Step 3: Cross multiply
    76,130.16x = 105,089.85 × 51,606.60
  4. Step 4: Simplify right side
    76,130.16x = 5,423,329,853.01
  5. Step 5: Solve for x
    x = 5,423,329,853.01/76,130.16
  6. Step 6: Final answer
    x = 71,237.60

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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.