Home / 64,421.34-88,902.36-38,924.16

Finding the Fourth Proportional to 64,421.34, 88,902.36 and 38,924.16

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Solution

The fourth proportional to 64,421.34, 88,902.36 and 38,924.16 is: 53,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,421.34 : 88,902.36 = 38,924.16 : x
  2. Step 2: Convert to fraction form
    64,421.34/88,902.36 = 38,924.16/x
  3. Step 3: Cross multiply
    64,421.34x = 88,902.36 × 38,924.16
  4. Step 4: Simplify right side
    64,421.34x = 3,460,449,685.02
  5. Step 5: Solve for x
    x = 3,460,449,685.02/64,421.34
  6. Step 6: Final answer
    x = 53,715.89

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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.