Home / 66,437.29-91,683.88-36,223.12

Finding the Fourth Proportional to 66,437.29, 91,683.88 and 36,223.12

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Solution

The fourth proportional to 66,437.29, 91,683.88 and 36,223.12 is: 49,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.29 : 91,683.88 = 36,223.12 : x
  2. Step 2: Convert to fraction form
    66,437.29/91,683.88 = 36,223.12/x
  3. Step 3: Cross multiply
    66,437.29x = 91,683.88 × 36,223.12
  4. Step 4: Simplify right side
    66,437.29x = 3,321,075,547.77
  5. Step 5: Solve for x
    x = 3,321,075,547.77/66,437.29
  6. Step 6: Final answer
    x = 49,988.12

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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.