Home / 85,701.48-128,554.95-26,537.66

Finding the Fourth Proportional to 85,701.48, 128,554.95 and 26,537.66

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Solution

The fourth proportional to 85,701.48, 128,554.95 and 26,537.66 is: 39,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,701.48 : 128,554.95 = 26,537.66 : x
  2. Step 2: Convert to fraction form
    85,701.48/128,554.95 = 26,537.66/x
  3. Step 3: Cross multiply
    85,701.48x = 128,554.95 × 26,537.66
  4. Step 4: Simplify right side
    85,701.48x = 3,411,547,343.97
  5. Step 5: Solve for x
    x = 3,411,547,343.97/85,701.48
  6. Step 6: Final answer
    x = 39,807.33

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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.