Home / 97,770.28-134,925-55,328.80

Finding the Fourth Proportional to 97,770.28, 134,925 and 55,328.80

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Solution

The fourth proportional to 97,770.28, 134,925 and 55,328.80 is: 76,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,770.28 : 134,925 = 55,328.80 : x
  2. Step 2: Convert to fraction form
    97,770.28/134,925 = 55,328.80/x
  3. Step 3: Cross multiply
    97,770.28x = 134,925 × 55,328.80
  4. Step 4: Simplify right side
    97,770.28x = 7,465,238,340
  5. Step 5: Solve for x
    x = 7,465,238,340/97,770.28
  6. Step 6: Final answer
    x = 76,354.88

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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.