Home / 85,303.71-127,888.13-42,587.24

Finding the Fourth Proportional to 85,303.71, 127,888.13 and 42,587.24

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Solution

The fourth proportional to 85,303.71, 127,888.13 and 42,587.24 is: 63,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,303.71 : 127,888.13 = 42,587.24 : x
  2. Step 2: Convert to fraction form
    85,303.71/127,888.13 = 42,587.24/x
  3. Step 3: Cross multiply
    85,303.71x = 127,888.13 × 42,587.24
  4. Step 4: Simplify right side
    85,303.71x = 5,446,401,952.49
  5. Step 5: Solve for x
    x = 5,446,401,952.49/85,303.71
  6. Step 6: Final answer
    x = 63,847.19

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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.