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Finding the Fourth Proportional to 64,477.10, 96,715.65 and 42,358.70

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Solution

The fourth proportional to 64,477.10, 96,715.65 and 42,358.70 is: 63,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,477.10 : 96,715.65 = 42,358.70 : x
  2. Step 2: Convert to fraction form
    64,477.10/96,715.65 = 42,358.70/x
  3. Step 3: Cross multiply
    64,477.10x = 96,715.65 × 42,358.70
  4. Step 4: Simplify right side
    64,477.10x = 4,096,749,203.66
  5. Step 5: Solve for x
    x = 4,096,749,203.66/64,477.10
  6. Step 6: Final answer
    x = 63,538.05

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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.