Home / 66,720.08-92,134.95-42,888.26

Finding the Fourth Proportional to 66,720.08, 92,134.95 and 42,888.26

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Solution

The fourth proportional to 66,720.08, 92,134.95 and 42,888.26 is: 59,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,720.08 : 92,134.95 = 42,888.26 : x
  2. Step 2: Convert to fraction form
    66,720.08/92,134.95 = 42,888.26/x
  3. Step 3: Cross multiply
    66,720.08x = 92,134.95 × 42,888.26
  4. Step 4: Simplify right side
    66,720.08x = 3,951,507,690.69
  5. Step 5: Solve for x
    x = 3,951,507,690.69/66,720.08
  6. Step 6: Final answer
    x = 59,225.16

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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.