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Finding the Fourth Proportional to 51,417.60, 77,077.80 and 30,373.80

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Solution

The fourth proportional to 51,417.60, 77,077.80 and 30,373.80 is: 45,531.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,417.60 : 77,077.80 = 30,373.80 : x
  2. Step 2: Convert to fraction form
    51,417.60/77,077.80 = 30,373.80/x
  3. Step 3: Cross multiply
    51,417.60x = 77,077.80 × 30,373.80
  4. Step 4: Simplify right side
    51,417.60x = 2,341,145,681.64
  5. Step 5: Solve for x
    x = 2,341,145,681.64/51,417.60
  6. Step 6: Final answer
    x = 45,531.99

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1.5x scale

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.