Home / 66,430.29-99,645.30-26,978.16

Finding the Fourth Proportional to 66,430.29, 99,645.30 and 26,978.16

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Solution

The fourth proportional to 66,430.29, 99,645.30 and 26,978.16 is: 40,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430.29 : 99,645.30 = 26,978.16 : x
  2. Step 2: Convert to fraction form
    66,430.29/99,645.30 = 26,978.16/x
  3. Step 3: Cross multiply
    66,430.29x = 99,645.30 × 26,978.16
  4. Step 4: Simplify right side
    66,430.29x = 2,688,246,846.65
  5. Step 5: Solve for x
    x = 2,688,246,846.65/66,430.29
  6. Step 6: Final answer
    x = 40,467.19

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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.