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Finding the Fourth Proportional to 64,684.80, 89,235.50 and 46,751.40

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Solution

The fourth proportional to 64,684.80, 89,235.50 and 46,751.40 is: 64,495.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,684.80 : 89,235.50 = 46,751.40 : x
  2. Step 2: Convert to fraction form
    64,684.80/89,235.50 = 46,751.40/x
  3. Step 3: Cross multiply
    64,684.80x = 89,235.50 × 46,751.40
  4. Step 4: Simplify right side
    64,684.80x = 4,171,884,554.70
  5. Step 5: Solve for x
    x = 4,171,884,554.70/64,684.80
  6. Step 6: Final answer
    x = 64,495.59

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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.