Home / 96,931.70-133,765-53,911.58

Finding the Fourth Proportional to 96,931.70, 133,765 and 53,911.58

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Solution

The fourth proportional to 96,931.70, 133,765 and 53,911.58 is: 74,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,931.70 : 133,765 = 53,911.58 : x
  2. Step 2: Convert to fraction form
    96,931.70/133,765 = 53,911.58/x
  3. Step 3: Cross multiply
    96,931.70x = 133,765 × 53,911.58
  4. Step 4: Simplify right side
    96,931.70x = 7,211,482,498.70
  5. Step 5: Solve for x
    x = 7,211,482,498.70/96,931.70
  6. Step 6: Final answer
    x = 74,397.57

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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.