Home / 42,719.51-64,079.13-11,554.76

Finding the Fourth Proportional to 42,719.51, 64,079.13 and 11,554.76

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Solution

The fourth proportional to 42,719.51, 64,079.13 and 11,554.76 is: 17,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,719.51 : 64,079.13 = 11,554.76 : x
  2. Step 2: Convert to fraction form
    42,719.51/64,079.13 = 11,554.76/x
  3. Step 3: Cross multiply
    42,719.51x = 64,079.13 × 11,554.76
  4. Step 4: Simplify right side
    42,719.51x = 740,418,968.16
  5. Step 5: Solve for x
    x = 740,418,968.16/42,719.51
  6. Step 6: Final answer
    x = 17,332.10

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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.