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Finding the Fourth Proportional to 97,478.76, 134,505.52 and 55,036.40

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Solution

The fourth proportional to 97,478.76, 134,505.52 and 55,036.40 is: 75,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,478.76 : 134,505.52 = 55,036.40 : x
  2. Step 2: Convert to fraction form
    97,478.76/134,505.52 = 55,036.40/x
  3. Step 3: Cross multiply
    97,478.76x = 134,505.52 × 55,036.40
  4. Step 4: Simplify right side
    97,478.76x = 7,402,699,600.93
  5. Step 5: Solve for x
    x = 7,402,699,600.93/97,478.76
  6. Step 6: Final answer
    x = 75,941.67

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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.