Home / 42,980.16-64,176.09-38,508.96

Finding the Fourth Proportional to 42,980.16, 64,176.09 and 38,508.96

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Solution

The fourth proportional to 42,980.16, 64,176.09 and 38,508.96 is: 57,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,980.16 : 64,176.09 = 38,508.96 : x
  2. Step 2: Convert to fraction form
    42,980.16/64,176.09 = 38,508.96/x
  3. Step 3: Cross multiply
    42,980.16x = 64,176.09 × 38,508.96
  4. Step 4: Simplify right side
    42,980.16x = 2,471,354,482.77
  5. Step 5: Solve for x
    x = 2,471,354,482.77/42,980.16
  6. Step 6: Final answer
    x = 57,499.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.