Home / 66,421.34-91,663.16-37,740.06

Finding the Fourth Proportional to 66,421.34, 91,663.16 and 37,740.06

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Solution

The fourth proportional to 66,421.34, 91,663.16 and 37,740.06 is: 52,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.34 : 91,663.16 = 37,740.06 : x
  2. Step 2: Convert to fraction form
    66,421.34/91,663.16 = 37,740.06/x
  3. Step 3: Cross multiply
    66,421.34x = 91,663.16 × 37,740.06
  4. Step 4: Simplify right side
    66,421.34x = 3,459,373,158.19
  5. Step 5: Solve for x
    x = 3,459,373,158.19/66,421.34
  6. Step 6: Final answer
    x = 52,082.25

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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.