Home / 62,996.40-86,987.64-56,270.16

Finding the Fourth Proportional to 62,996.40, 86,987.64 and 56,270.16

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Solution

The fourth proportional to 62,996.40, 86,987.64 and 56,270.16 is: 77,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,996.40 : 86,987.64 = 56,270.16 : x
  2. Step 2: Convert to fraction form
    62,996.40/86,987.64 = 56,270.16/x
  3. Step 3: Cross multiply
    62,996.40x = 86,987.64 × 56,270.16
  4. Step 4: Simplify right side
    62,996.40x = 4,894,808,420.82
  5. Step 5: Solve for x
    x = 4,894,808,420.82/62,996.40
  6. Step 6: Final answer
    x = 77,699.81

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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.