Home / 90,501.90-124,810.86-56,513.52

Finding the Fourth Proportional to 90,501.90, 124,810.86 and 56,513.52

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Solution

The fourth proportional to 90,501.90, 124,810.86 and 56,513.52 is: 77,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,501.90 : 124,810.86 = 56,513.52 : x
  2. Step 2: Convert to fraction form
    90,501.90/124,810.86 = 56,513.52/x
  3. Step 3: Cross multiply
    90,501.90x = 124,810.86 × 56,513.52
  4. Step 4: Simplify right side
    90,501.90x = 7,053,501,032.83
  5. Step 5: Solve for x
    x = 7,053,501,032.83/90,501.90
  6. Step 6: Final answer
    x = 77,937.60

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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.