Home / 53,112.16-79,681.90-15,670.72

Finding the Fourth Proportional to 53,112.16, 79,681.90 and 15,670.72

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Solution

The fourth proportional to 53,112.16, 79,681.90 and 15,670.72 is: 23,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112.16 : 79,681.90 = 15,670.72 : x
  2. Step 2: Convert to fraction form
    53,112.16/79,681.90 = 15,670.72/x
  3. Step 3: Cross multiply
    53,112.16x = 79,681.90 × 15,670.72
  4. Step 4: Simplify right side
    53,112.16x = 1,248,672,384.74
  5. Step 5: Solve for x
    x = 1,248,672,384.74/53,112.16
  6. Step 6: Final answer
    x = 23,510.11

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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.