Home / 85,075.56-127,681.38-38,332.08

Finding the Fourth Proportional to 85,075.56, 127,681.38 and 38,332.08

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Solution

The fourth proportional to 85,075.56, 127,681.38 and 38,332.08 is: 57,528.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,075.56 : 127,681.38 = 38,332.08 : x
  2. Step 2: Convert to fraction form
    85,075.56/127,681.38 = 38,332.08/x
  3. Step 3: Cross multiply
    85,075.56x = 127,681.38 × 38,332.08
  4. Step 4: Simplify right side
    85,075.56x = 4,894,292,872.67
  5. Step 5: Solve for x
    x = 4,894,292,872.67/85,075.56
  6. Step 6: Final answer
    x = 57,528.78

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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.